Well thats how all Resident Evil games have been to date. it would be convinet to walk backwards while shooting but it gives more of the horror feeling in away just standing and shooting. Really all you have to do is make a 180 degree turn then run and turn back and shoot them

Well I've only played Resident evil 4. You and your brother could always have a seperate turn. Resident evil 4 is one of the best games I've ever played. After you beat it theres tons of stuff to still do, you can buy weapons and upgrade them The only downside I can think of off and is the item box is to small at the beginning of the game but you can buy a upgrade once you advance.

I've never played Killzone so I just gave you my take on Resident Evil 4