D20 Systems

The D20 Systems utilized by The First Regiment will be listed here.
==F.A.Q.s==
What is your advice for DMing?
The following advice is composited from statements given by multiple officers. More may be added to this answer in the future!
You must be willing to put yourself out there, make mistakes, and accept critical feedback without taking offense. If you consistently work at it, you will see tremendous improvement over time if you take that into consideration and implement improvements.
Another thing is that sometimes new DMs try and over-structure things. You need to allow for people in the event to influence what happens, and you need to be able to improvise when people to unexpected things. This doesn’t mean you should not have a clear understanding of what you want to do and accomplish before you begin the event, but you must be willing to take peoples actions into consideration. 
You should also be sure to take the numbers in attendance into consideration when beginning your event. An event can be fun whether there are two people for forty just by making sure you adjust your plan to take that into consideration. As an example, if you were planning on a siege type battle and only a couple people show up? No problem! Consider using NPCs to fight the main battle, and have the attendees use it as a distraction to go in through a hidden entrance. The same thing can be done in reverse!
I hate most rolling systems that people use in WoW because they feel needlessly mathematical and unwieldy in terms of pacing events, storytelling and balancing difficulty. Will I get frowned at if I introduce my own bare-bones rolling rules for when I Dungeon Master events?
I can't say that we would not prefer it if you used the D20 Conquest system, especially for larger/important events, but it is definitely OK to use a barebones system for casual events. If you're not comfortable using the D20 Conquest system for larger events, I'd personally recommend getting in some practice to try it out and if you're still not convinced, then just make sure you announce ahead of time that you'll be using something different.