Persistent Upgrades

Persistent Upgrades, commonly referred as "Perma-Perks", are unlockable upgrades that the player can gain through unique methods in Call of Duty: Black Ops II. These upgrades only take effect and can be acquired on the maps Green Run, Great Leap Forward, and Resolution 1295 (only present on the major modes TranZit, Die Rise, and Buried and not present in any Survival, Grief, and Turned modes). The player can have multiple upgrades at once (although some may cancel/interfere with others), and they carry over to different game sessions and maps. They can also easily be lost, usually if the player does not make use of the upgrade. Some of these imitate Perk-a-Colas, while others imitate Power-Ups.
When an upgrade is obtained, a green haze, similar to picking up a Power-Up, appears near the player, and the player's character will say a line about it. Losing one will result in a faint eerie sound.
Persistent Upgrades can't be obtained nor will they be affected when playing in Local or LAN Party.
==Quick Revive==
The Quick Revive upgrade, doubles the speed which players revive downed teammates. This can be combined with Quick Revive Perk-a-Cola making revives four times faster.
To obtain the upgrade, the player must finish 17 revives in one game.
To lose the upgrade, the player must fail to revive a player partway through the process.
== Juggernog ==
The Juggernog upgrade grants the player 90 additional health, bringing their overall health to 190. When combined with the Juggernog Perk-a-Cola, the player can reach 340 health.
To obtain the upgrade, the player must fully die without Quick Revive, three times, before round 3
To lose the upgrade, the player must reach round 15. Even after losing the upgrade, the 90 health bonus will continue to be in effect until the player takes a down.
== Headshot Damage ==
The Headshot Damage upgrade doubles the player's headshot damage multiplier. When active, all zombies killed will have the Insta-Kill's decapitation effect, even if killed without a headshot.
To obtain the upgrade, the player needs 5 collateral headshots multi-kills. Getting 2 or more headshot kills with one bullet counts as one collateral headshots multi-kill.
To lose the upgrade, the player must get 25 non-headshot zombie kills. Getting one collateral headshots multi-kill will reset this counter back to zero. 
== Tombstone ==
The player can earn the Tombstone upgrade which will remove only the last perk acquired after being revived. Quick Revive will always be lost first, even on Co-Op.
To obtain the upgrade, the player must purchase a perk to fill the 4th perk slot on rounds 6 or lower, on three separate matches. 
To lose the upgrade, the player must either: purchase a perk on the same round and match on which they have gained the upgrade, or purchase a perk on the same round on which they have joined the match if the upgrade was obtained on a different match. The Time Bomb from Buried can be utilised to achieve this, by activating it to return to either the round on which the player has joined or obtained the upgrade, or a lower round. The upgrade cannot be lost on round 1.
==Steel Barriers==
The Steel Barriers upgrade will have the player use steel boards in place of wooden ones when repairing barriers.
To obtain the upgrade, the player must rebuild 74 boards on rounds 10 or higher without the help of the Carpenter power-up.
To lose the upgrade, the player must pass a round without rebuilding any boards.
==Steel Carpenter==
The player can earn the Steel Carpenter upgrade which makes the Carpenter power-up place steel boards instead of wooden ones. These have a different appearance, being "fresher." Zombies take double the time ripping off steel boards.
To obtain the upgrade, the player must pick up a Carpenter power-up and proceed to kill a zombie in a window during the Carpenter period.
To lose the upgrade, the player must pick up a Carpenter power-up and fail to kill a zombie in a window during the Carpenter period.
== Insta-Kill Pro ==
The player can earn an upgrade to the Insta-Kill power-up which lasts 18 seconds during a regular Insta-Kill period and grants the player with the ability to kill zombies just by touching them, although it only gives the player 50 points per kill.
To obtain the upgrade, the player must pick up an Insta-Kill power-up and not kill any enemies for two Insta-Kill periods in a row.
To lose the upgrade, the player must take a hit from a zombie during an Insta-Kill period.
== Ray Gun Wall-Buy ==
The player can earn the Ray Gun Wall-Buy upgrade which will allow the player to purchase the Ray Gun in place of the Olympia wall-buy. The costs of purchasing the Ray Gun and its ammo remain the same as the costs for the Olympia. While the upgrade is active, the player cannot obtain the Olympia from purchasing from the wall-buy.
Note: there are glitches regarding this upgrade, as follows:
* Upon obtaining the upgrade while not having the Olympia, the player will receive a non-upgraded Ray Gun for 500 points, regardless of whether it is already in the player's inventory or not.
* While having the upgrade active, and either the kill streak be less than 5 or having ever reached a round greater than 10 on the major modes (both explained below in how to obtain the upgrade); then—upon attempting to purchase the Ray Gun off the wall-buy while not having the Olympia—the player will receive a non-upgraded Ray Gun for 500 points, regardless of whether it is already in the player's inventory or not.
To obtain this, the player must get a zombies kill streak of at least 5 kills and then purchase the Olympia. None of the kills may be headshot kills, melee kills, or kills preceded by a barrier repair; as these actions reset the kill streak. The player must never have reached a round greater than 10 on the major modes (TranZit, Die Rise, Mob of the Dead, Buried, Origins), as this will prevent the kills from counting towards the kill streak.
To lose this, the player must reach round 10 or higher on any of the major Victis modes (TranZit, Die Rise, Buried).
This upgrade is available in offline matches only on the TranZit and Die Rise modes, though it is limited. On offline, the upgrade does not save to the player's profile. Therefore, the player must meet the requirements every time they would like to purchase the Ray Gun off the wall-buy. Only the 1st glitch mentioned still applies, as the 2nd one requires having the upgrade be registered to the player's profile as active.
== Flopper ==
This is exclusively in Buried.
The player can earn the Flopper upgrade which grants the ability to create an explosion from "dolphin diving" and become immune to most explosive/splash damage. Unlike PhD Flopper, the player can still die from over-cooked grenades and is not immune to fall damage, unless they are diving. 
To obtain the upgrade, the player must take at least 30 damage from a fall 6 times. 
To lose the upgrade, the player must take at least 50 damage from a fall once.
There are several Flopper bugs the player can use to their advantage:
* Holding out a Claymore while diving will greatly increase explosion damage.
* Holding a sniper while diving and having the Sniper Points upgrade active will grant the player the 300 point bonus from the Sniper Points upgrade on all zombies killed, despite them not being actual sniper kills.
== Better Box ==
The player can earn Better Box upgrade which will change the weapon pool of the Mystery Box. When the player spins the Mystery Box while having the upgrade, they may pull a gun from the Better Box upgraded weapon pool or the regular weapon pool. The game will keep a counter of how many times the player has pulled from the upgraded pool. This number will determine the chance that the next box hit will use the upgraded pool, as follows: 
* 0 pulls: 100%
* 1 pull: 60%
* 2 pulls: 0%
When the player rolls on 0% or misses the 60% chance, they will receive a weapon from the regular weapon pool, and the counter will reset.
Better Box Upgraded Weapon Pools
TranZit 	Die Rise 	Buried
Ballistic Knife	Ballistic Knife	Ballistic Knife
Monkey Bombs 	Monkey Bombs 	Monkey Bombs
Galil 	Galil 	Galil
HAMR 	HAMR 	HAMR
Ray Gun 	Ray Gun 	Ray Gun
Executioner 	Executioner 	Ray Gun Mark II
RPD 	RPD 	Paralyzer
EMP Grenades 	Python 	Time Bomb
 	 	MTAR
 	 	M1216
 	 	S12
To obtain the upgrade, the player must accept 5 items in a row from the Mystery Box before round 10. Having the box move does not reset this counter. 
To lose the upgrade, the player must reach round 10 or higher. For the rest of the match, the upgrade cannot be obtained once lost.
==Cash Back==
The player can earn the Cash Back upgrade which grants a refund of 1000 points (500-point profit if buying Quick Revive on solo) on the purchase of any perk. This is not affected by Double Points.
To obtain the upgrade, the player must first purchase 50 perks. Thereafter, the player must go prone within 2.5 seconds after the perk logo has appeared on the screen after purchasing a perk, for 15 perk purchases. 
To lose the upgrade, the player must fail to go prone within 2.5 second after the perk logo has appeared on the screen after purchasing a perk.
== Half-Off==
The player can earn a 50% discount on all items during a Double Points period. This can be stacked with the effects of Fire Sale, which will discount the price of the Mystery Box all the way to just five points per weapon.
Additionally, the Mystery Box can be discounted by 75% off during a Double Points period if the player’s points are less than 950 points (original price) and greater than or equal to 475 points (half price), which will result in the Mystery Box’s price to cost 237 points. The 75% discount on the Mystery Box also applies to its price during Fire Sale, in which if the player’s points are less than 10 points and greater or equal to 5 points, the cost of the Mystery Box will go down to 2 points.
Furthermore, the amount which a Ghost from the map Buried can steal during a Double Points period will be reduced as follows:
*If the player’s points are greater or equal to 2000 points: 1000 points will be taken away instead of the usual 2000 points.
*If the player’s points are less than 2000 points and greater than zero: half (50%) of the player’s points will be taken away. That is until the points reach 1 point which the Ghost cannot steal during the Double Points period, which makes the player unaffected by Ghosts.
To obtain this, the player must pick up a Double Points power-up and proceed to gain a net profit of 2500 points or higher during the Double Points period. This means that the result of the gained points minus the points spent during a Double Points period must be greater than or equal to 2500 points.
Note: bank withdrawals do not contribute towards the net profit.
To lose this, the player must pick up a Double Points power-up and proceed to gain points during the Double Points period.
== Sniper Points==
The player can earn an extra 300 points per kill with a sniper rifle. The extra 300 points is not affected by Double Points. This can be stacked with the Flopper upgrade which also count as sniper kills just by creating the explosion given from the upgrade only if the player is holding out their sniper rifle.
To obtain the upgrade, the player must score 5 sniper kills distanced at least 800 units away from them in one round.
To lose the upgrade, the player must miss three sniper shots in a row.
==Pistol Points ==
The player can earn the Pistol Points upgrade which doubles all points gained from pistol bullets. 
To obtain the upgrade, the player must kill a zombie while having a 25% or less shooting accuracy and at least 8 kills. 
To lose the upgrade, the player must kill a zombie while having a higher than 25% shooting accuracy.
==Gallery==
Persistent Upgrade obtained BOII.png|The green glow that occurs when the player obtains an upgrade
Category:Call of Duty: Black Ops II Zombies Utilities