Controls in Outwars are unlike nearly any other game, aside from perhaps MechWarrior in complexity and configuration. And just like in MechWarrior, despite there being so many things you don't really use many.
Outwars is by no means a modern shooter but it certainly is, and was 20 years ago, best controlled with the typical 'twin stick' setup.
WASD - Strafe Left/Rright, Run Forward/Back
Mouse - Aim Up/Down, Turn Left/right
Firing weapons is where things go off the deep end. Most games you fire one weapon at a time. Perhaps one weapon and one grenade. In Outwars you can carry up to six weapons and you can fire each individually, provided you set a fire key for each weapon. This leads to a pretty busy bunch of key whacking when you're in the thick of it. It also leads to some of the unique multiplayer combat mechanics you find in this game that you will never see anywhere else.
If you push a bunch of keys at the same time on most keyboards you will not actually register all those key presses. For typing up a document that's fine but for gaming in general and Outwars in particular this isn't going to work.
The solution: N-key rollover
If you have a fancy enough keyboard, typically most medium and high end gaming keyboards certainly Razer ones, this does not affect you because your keyboard is capable of n-key rollover. That is a fancy term that says your keyboard can register as many keys at the same time as you can find ways to push.
Non n-key rollover and the workaround
Most keyboards can do like three, so, if you were to put all six Fire Weapon commands on buttons surrounding WASD guess what? You will either not be firing weapons when pushing them, or not moving.
So, instead, back in the day I would use the Arrow keys with rCtrl rShift Enter + Num0 Num1 Num 3 to fire my six weapons. This works great because none of those keys roll over each other and you can mash them all at once just fine. With this knowledge, you can choose to put your Fire Weapon keys where you like knowing the limitation you face. Or, do as I suggested and just move the damn keyboard to the left so your left hand can be on the arrow keys.
On my fancy weirdo custom gaming keyboard i just use WASD because it does in fact do n-key. But I can't type sentences properly on it sooo there's that. Whatever.
An examination of all the keybinding possibilities
The above section focused really on what you need to be effective in multiplayer matches. This section will look at all the random shit you can actually do in the game controls wise, it is novel and interesting!