not so much exactly what i would do overall, but some things I'd find interesting to see done...
- when you get shot and don't die, you're wounded. healing takes longer, requires a medic, and you will bleed out if you don't get help.
- Guts. I can fuck alien women in Mass Effect but I can't get gray matter splatter and some intestines falling out? Fuck the parents. If they were concerned about their kids they wouldn't be letting ones who are too young play violent stuff online with people who shout racial slurs all day. War should be shown for what it is i.e. disgusting.
- close combat that isn't relegated to a fucking knife animation (or if you're playing Call of Doody, a super 5 ft long ninja knife that kills with a wimpy slash). Why can't I just enter a room and jab someone in the throat with my gun barrel or something?
- More realistic locations. Furthermore, guns need to be unwieldy if they are too big for a hallway. There's a reason cops and military always want compact designs for indoors and it isn't to save space on their person for a bag of Sour Patch Kids.
- Stop making me jump over fucking everything. The average FPS character jumps more than half the NBA combined. While we're talking about more fluid movement, developers should just set a standard for how ladders function. Why is going down a ladder such a pain all the time? I can only assume that developers all suffer from a weird syndrome where attempting to go down a ladder results in leaping to their death inexplicably. Similarly why are hills I could easily climb also difficult to maneuver?
- Shotguns are always too weak these days. Sure armor will protect you from a round reasonably well but you're still going to be knocked on your ass.
- How does one aim while being shot? Please explain game developers. Battlefield 3 particularly pisses me off with this. I constantly put bursts into people only to have them turn and kill me. Recap: 3-6 bullets enter your body, you turn, aim, and kill the attacker. Sure. Ok. Stop rewarding dipshits who don't pay attention.
If I could choose any particular game concept though, I have an idea that incorporate tactical planning, stealth, and survival. A game where you are a partisan during World War 2 fighting Nazis. Build equipment, secure air drops from the OSS/SAS, smuggle people in/out, secure intelligence, plan ambushes, carry out assassinations, sabotage railroads and crash trains. It would be open world of course. The fighting would involve both outdoors forest/country type locations and urban warfare. Your attacks will result in civilians being killed in Nazi reprisals (in reality there was no saving them, but you should be able to for gameplay purposes). Flush double agents and moles out of your partisan group. Co-Op? Oh of course. You can't do this alone (probably). Add some skills to upgrade such as bomb making, or improved marksmanship etc. to create a better fascist hunter. It could be done.