Document:

EX-4.11

 EXHIBIT 4.11 

Third Amendment to 

Alion Science and Technology Corporation 

Employee Ownership, Savings and Investment Plan 

(As Amended and Restated Effective October 1, 2011) 

WHEREAS, Alion Science and Technology Corporation (the “Company”) maintains the Alion Science and Technology Corporation Employee
Ownership, Savings and Investment Plan (the “Plan”) for the benefit of its employees and employees of other adopting employers, and was last amended and restated as of October 1, 2011; and 

WHEREAS, the Board of Directors of the Company, pursuant to Plan Section 15.1 of the Plan, has delegated authority to amend the Plan to
the undersigned officer, provided he determines that the amendment would not materially increase costs of the Plan to the Company or any Adopting Employer; and 

WHEREAS, the Company desires to amend the Plan to exclude from participation in the Plan employees hired or re-hired on or after
October 1, 2014 whose employment is covered by the Service Contract Act. 
 NOW, THEREFORE, pursuant to the powers of amendment
reserved under Section 15.1 of the Plan, the Plan is hereby amended by the Company, effective as of the date of adoption set forth below, as follows: 
  

	 	1.	Section 2.17 is amended by adding a new subsection (e) thereto, to provide as follows, effective October 1, 2014: 

  

	 	    	“(e) An Employee whose most recent date of hire is on or after October 1, 2014 and whose employment is covered by the Service Contract Act.” 

 

	 	2.	Section 4.2 is amended by adding the following new sentence to the end thereto, effective October 1, 2014: 

  

	 	    	“Contributions shall not be made pursuant to this Section 4.2 for Employees whose most recent date of hire is on or after October 1, 2014.” 

IN WITNESS WHEREOF, Alion Science and Technology Corporation has caused this Second Amendment to the Plan to be executed on its behalf by the
Chief Executive Officer as of the 28th day of March, 2014. 
  

			
	Alion Science and Technology Corporation
		
	By:	 	/s/ Bahman Atefi
	Name:	 	Bahman Atefi
	Title:	 	Chief Executive OfficerEX-10.1

 Exhibit 10.1 

THE COSMOPOLITAN OF LAS VEGAS 2014 ANNUAL INCENTIVE PLAN 

Nevada Property 1 LLC, a Delaware limited liability company, d/b/a The Cosmopolitan of Las Vegas (the “Company”), has established The Cosmopolitan
of Las Vegas 2014 Annual Incentive Plan (the “Plan”), effective for the Company’s fiscal year beginning January 1, 2014. Capitalized terms will have the meanings given to them in Article 2. The purpose of the Plan is to provide
an equitable corporate-wide incentive that awards individual and team effort in meeting or exceeding sales and income goals and assists in the retention of key employees. 

Definitions 
 For purposes of the Plan and all
Target Awards, the following terms will have the meanings set forth below: 
 “Adjusted EBITDA” means the Company’s earnings before
interest, income taxes, and depreciation and amortization expenses, as calculated by the Company in accordance with generally accepted accounting principles, excluding pre-opening expenses and corporate expenses. For clarity, earnings is calculated
as operating profit from the business after deducting marketing, property management, G&A, fixed property costs, and other undistributed expenses. 

“Affiliate” means the Company or any other Person that directly or indirectly through one or more intermediaries, controls, is controlled by,
or is under common control with, the Company. For purposes of the preceding sentence, the word “control” (by itself and as used in the terms “controlling,” “controlled by,” and “under common control with”)
means the possession, direct or indirect, of the power to direct or cause the direction of the management and policies of a Person, whether through the ownership of voting securities or membership interests, by contract, or otherwise. 

“Cause” will have the meaning set forth in any employment or other agreement between the Company and the Participant. If there is no
employment or other agreement between the Company and the Participant, or if such agreement does not define “Cause,” then “Cause” means (a) any willful and material breach by the Participant of any of the Participant’s
obligations contained in state or federal law, this Plan, or any other agreement between the Company and the Participant; (b) a willful and consistent neglect or failure to perform the Participant’s duties and responsibilities consistent
with the Participant’s position(s); (c) the Participant’s material violation of the Company’s code of ethics; (d) the Participant’s violation of the Company’s anti-harassment, discrimination, and retaliation
provisions; (e) the Participant’s conviction or plea of nolo contendere to a felony; (f) the Participant’s failure to satisfy any licensing requirement, qualification, clearance, or similar requirement that is requested or
required of the Participant by any regulatory authority having jurisdiction over the Company; (g) any governmental authority’s direction to the Company to terminate any relationship it may have with the Participant; or (h) the
Company’s determination, in its reasonable good-faith judgment, that the Participant was, is, or is about to be, involved in any activity, relationship(s), or circumstance that could or does jeopardize the Company’s business, reputation,
or licenses issued by governmental authorities. The Company’s determination that Cause exists for termination of employment under this provision shall be binding on the Participant, subject to the dispute resolution provisions of the Plan. For
purposes of the Plan, (x) no act or failure to act on the Participant’s part shall be considered “willful” unless it is done or omitted to be done by the Participant in bad faith or without reasonable belief that the
Participant’s action or omission was in the best interests of the Company, and (y) any act, or failure to act, based upon authority given pursuant to a resolution duly adopted by the Board or based upon the advice of counsel for the
Company will be conclusively presumed to be done or omitted to be done in good faith and in the best interests of the Company. 

“Disability” will have the meaning set forth in any employment or other agreement between the Company and the Participant. If there is no
employment or other agreement between the Company and the Participant, or if such agreement does not define “Disability,” then “Disability” means the Participant is, by reason of any medically determinable physical or mental
impairment that can be expected to result in death or can be expected to last for a continuous period of not less than twelve (12) months, (i) unable to engage in any substantial gainful activity, or (ii) receiving income replacement
benefits for a period of not less than three (3) months under an accident and health plan covering employees of the Company. 

 “Earned Award” means the percentage of a Participant’s Target Award calculated according to
the Company’s Adjusted EBITDA and the Plan. 
 “EBITDA Stretch” means the Company has achieved an Adjusted EBITDA of $173.8 million
for the Plan Year. 
 “EBITDA Target” means the Company has achieved an Adjusted EBITDA of $151.1 million for the Plan Year. 

“EBITDA Threshold” means the Company has achieved an Adjusted EBITDA of $136 million for the Plan Year. 

“Exit Transaction” means the consummation of (a) a transaction or series of transactions in which occurs a sale of all or substantially
all of the assets or at least fifty percent (50%) of the membership (or other equity) interests of the Company or an Affiliate (which sale of an Affiliate’s assets or equity interests includes the Company), or a merger or other business
combination involving the Company or an Affiliate (which merger or other business combination includes the Company), in either case, the result of which is (i) the distribution of proceeds from such transaction to all members of the Company or
an Affiliate, and (ii) the effective sale, transfer, or other disposition of ownership of substantially all of the business of the Company; or (b) a Public Offering. For purposes of the Plan, an Exit Transaction shall be deemed to have
occurred on the closing date of any transaction described in the preceding sentence. A transaction shall not constitute an Exit Transaction if the primary purpose of such transaction is (x) to change the state or country of the Company’s
incorporation, or (y) to form a holding company that will be owned in substantially the same proportions by the persons who held the Company’s membership interests immediately before such transaction. Notwithstanding the foregoing, to the
extent that any payment under the Plan or any Incentive Award Agreement constitutes nonqualified deferred compensation within the meaning of Section 409A and is payable upon an Exit Transaction or other similar event, the definition of
“Exit Transaction” shall be deemed modified to the extent necessary to qualify as a “change in control event” as defined under Section 409A. 

“Participant” means each employee selected by the Company, in its sole discretion, to be eligible to receive a Target Award under the Plan in
the form of annual cash payouts. 
 “Target Award” means an incentive award with respect to the Plan Year, denominated, by the Board, as a
percentage of each Participant’s base salary, to be paid in cash. 
 “Successor” means any corporation or other business entity that
is the result of a direct or indirect purchase, merger, consolidation, or otherwise, of all or substantially all of the business and/or assets of the Company or an Affiliate. 

Earning and Calculation of Target Awards 
 If the
EBITDA Threshold is not achieved, no amount shall be payable to any Participant under the Plan. 
 Subject to adjustment as provided in the Plan, if the
Company achieves the EBITDA Threshold, at least ninety percent (90%) of each Participant’s Target Award will be paid to the Participant as an Earned Award for the Plan Year. 

Subject to adjustment as provided in the Plan, if the Company achieves the EBITDA Target, at least one hundred percent (100%) of each Participant’s
Target Award will be paid to the Participant as an Earned Award for the Plan Year. 
 Subject to adjustment as provided in the Plan, if the Company achieves
the EBITDA Stretch, at least one hundred fifteen percent (115%) of each Participant’s Target Award will be paid to the Participant as an Earned Award for the Plan Year. 

If the Company achieves (i) in excess of the EBITDA Threshold, but less than the EBITDA Target, (ii) in excess of the EBITDA Target, but less than
the EBITDA Stretch, or (iii) in excess of the EBITDA Stretch, the percentage of each Participant’s Target Award paid to the Participant for the Plan Year will be determined by straight-line interpolation; provided that, in no event will
the percentage of any Participant’s Target Award for the Plan Year exceed one hundred twenty-five percent (125%) of the Participant’s Target Award. 

 The percentage calculated above shall be each Participant’s Earned Award, which may be further adjusted
under the terms of the Plan. 
 Notwithstanding the foregoing, the Participant’s Direct Supervisor will have the discretion to reduce or increase the
amount of each Participant’s Earned Award for the Plan Year by as much twenty-five percent (–25% to +25%). This is a discretionary approach to recognize exceptional contributors and penalize seldom contributors. 

Payment of Earned Awards 
 Earned Awards shall be
paid in cash, less any required federal, state, or local income and employment taxes, after the end of the Plan Year; provided that, in no event will Earned Awards, if any, be paid later than March 15, 2015. 

Termination of Employment 
 To be entitled to
receive payment of an Earned Award under the Plan, a Participant must remain actively employed by the Company or an Affiliate through the earlier to occur of an Exit Transaction or the end of the Plan Year, except that a Participant whose employment
terminates due to death or Disability or whose employment is terminated by the Company or an Affiliate without Cause after May 15, 2014, will be entitled to payment of an Earned Award, pro-rated for the portion of the Plan Year elapsed prior to
the Participant’s employment termination by multiplying the amount of such Participant’s Earned Award by a fraction, the numerator of which is the number of calendar days in the Plan Year up to the date of the Participant’s employment
termination and the denominator of which is 365, payable at the same time as the Company pays Earned Awards to other Participants. 
 Exit Transaction

 If an Exit Transaction occurs before December 31, 2014, an Earned Award amount will be calculated as of the date of the Exit Transaction,
except that the EBITDA Target will be the budgeted EBITDA at the time of the Exit Transaction and the Threshold and Stretch EBITDA figures will be adjusted proportionately and applied to each Participant’s Target Award to calculate each such
Participant’s Earned Award. The amount of Earned Award payable after this adjustment then will be pro-rated for the portion of the Plan Year elapsed prior to the Exit Transaction by multiplying the amount of each Participant’s Earned Award
by a fraction, the numerator of which is the number of calendar days in the Plan Year up to the day of the Exit Transaction and the denominator of which is 365. In no event will the Earned Award payable to a Participant after the end of the Plan
Year be less than the Earned Award calculated under this paragraph. 
 Amendment, Modification, and Termination 

The Board may at any time and from time to time alter, amend, modify, or terminate the Plan in whole or in part, except that no modification, amendment, or
termination will materially impair any rights of a Participant or reduce the amount of the Participant’s Earned Award, without the written consent of the Participant. An Exit Transaction will not terminate the Plan. 

Legal Construction 
 The Company will administer
the Plan. Except as limited by law and subject to the provisions of the Plan, the Company will have full power to: (a) select employees to participate in the Plan; (b) determine the terms and conditions of each Target Award in a manner
consistent with the Plan; (c) construe and interpret the Plan and any agreement or instrument entered into under the Plan; and (d) establish, amend, or waive rules and regulations for the Plan’s administration. Further, the Company
will make all other determinations that may be necessary or advisable to administer the Plan. 

 A Participant’s employment with the Company shall continue to be at-will and, as such, may be terminated by
the Participant or the Company at any time, for any reason, and with or without advance notice. Nothing in the Plan will interfere with or limit in any way the right of the Company to terminate any Participant’s employment at any time, or
confer upon any Participant any right to continue in the employment of the Company. 
 To the extent not preempted by federal law, the Plan shall be
governed by and construed in accordance with the laws of the State of Nevada, without regard to its principles of conflicts of laws. Any dispute with respect to the Plan will be litigated exclusively in federal or state courts located in Las Vegas,
Nevada, and the parties hereby consent and submit to the jurisdiction and venue of such courts. 
 The Plan and each Target Award granted thereunder are
intended to be exempt from or comply with Section 409A pursuant to the guidance issued thereunder by the U.S. Internal Revenue Service in all respects and shall be administered in a manner consistent with such intent. If an unintentional
operational failure occurs with respect to Section 409A requirements, any affected Participant or beneficiary shall fully cooperate with the Company to correct the failure, to the extent possible, in accordance with any correction procedure
established by the U.S. Internal Revenue Service. The Company makes no guarantee of any federal, state, or local tax consequences with respect to the interpretation of Section 409A and its application to the terms of the Plan or any Target
Award, and the Company shall have no liability for any adverse tax consequences to the Participant as a result of any violation of Section 409A. 
 All
obligations of the Company under the Plan with respect to a Target Award and an Earned Award granted hereunder shall be binding on any Successor, whether the existence of such Successor is the result of a direct or indirect purchase, merger,
consolidation, or otherwise, of all or substantially all of the business and/or assets of the Company or an Affiliate. For purposes of this Plan, a Participant’s employment with or service to any member of the controlled group of corporations
that includes, or any member of the group of trades or businesses under common control with, a Successor, will be considered continuous employment with the Company or an Affiliate. 

All amounts payable hereunder shall be payable only to the Participant, or if the event of the Participant’s death, the Participant’s spouse or, if
no spouse exists, to the Participant’s estate. The rights and interests of a Participant under the Plan may not be assigned, encumbered, or transferred, voluntarily or involuntarily, other than by will or the laws of descent and distribution.
The Company will not be required to treat as the payee of any Target Award any Person to whom a Target Award has been transferred. 
 The Plan and any
payment of Earned Awards will not affect or be in lieu of any severance, termination, or other benefits paid or payable to a Participant under any other agreement, plan, or policy of the Company or an Affiliate.

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