The problem with the "Battlefield BC2 stole from CoD" argument is that Battlefield 1942 came out before CoD 1.
Honestly, tactical decisions and teamwork are the only missing things.
The problem with that is that BF 1942 is not only more enjoyable, but is completely different from BC2. Those games are just a bunch of bells and whistles.
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As some of you may know, I've been putting the majority of my gaming time into Resistance and Liberation. The current beta version is kinda buggy, so it may not be the best example, however tactical fps games are still available. They're just not as popular as the giant CoD "tactical nook dood" franchise.
I've been playing paintball for about 13 years now, and the main problem I have is that any game depicting combat has failed to simulate an individual's movement. A game that I surprising liked was Medal of Honor Vanguard. It had a really interesting aiming system, and in my opinion was more accurate (in that
one area) than most other games. If I'm crouching behind a box, believe or not, I can adjust myself so that I can see just over the top. However, this is impossible in most games. The traditional 2-stance games are even worse, at least give me a prone. But even now 3-stance is getting old. Maybe something like Greg Hasting's Tournament Paintball Max'd would be cool. You can change between x-axis and y-axis (if you're on a pc, this could simply be done with the mouse) adjustments. So you can peek over the top of your bunker, OR around it. That gives you 4 directions x 3 stances = 12 fighting positions at any given time. Although, MoH:Vanguard's system was much more fluid.
Also, keep in mind the down side to teamwork games. I'm totally for teamwork in games, but it goes hand-in-hand with slow game play. Someone mentioned Ghost Recon. I had finished the coop campaign with a buddy just a few months ago on the original + expansions. The game play is REALLY slow by today's standards. Same with Resistance, running around will get you killed. The game play slows down because you have to wait for reinforcements while praying you won't be overrun, or get close enough to your teammates to use voice comms, etc. It all slows down game play but encourages teamwork. SWAT 4 is just another example. All of these teamwork oriented games have slow game play. I feel that it's a worthy sacrifice, but seeing the sales numbers for CoD and BC2 staying high, I doubt a sizable market will be available. Making anything "realistic," (it's a
game therefore, it can
never be realistic) would blow the 14 year old's minds away, IF that is, they convince their parents to part with another $60.