Well if you did PainKiller then you know about IronStorm, which I enjoyed, but the french seem to be ignorant of level saves, so when you need to do LVL4 correctly, you find that you actually have to restart back in the trenches of LvL 1, unless you kept 2 saves running concurrantly. I also found WarHammer40K:FireWarrior a real blast, But I am a fan of GWS miniatures back in the 80's and to see terminators, spacemarines, & choasmarines running around, I had to snag that title.
Then you come to my Favorite for over 2 years. BlackHawk Down & its exp pak TeamSabre. NovaLogic got thier act together when they made those titles, the MP is flat out awesome, 5k X 5k maps, are the standard and they dont have 'boundries', run far enuff and you enter on other side of map, and a reason not to camp is by gaining/maintaining control of PSPs (Progressive Spawn Points) to avoid spawn rapes, and even tho the maps on the Nova servers are varied, the Home-grown maps are down right original to the point where I play c0-Ops just to be WoWed out by the concepts. Nova also released JointOperations: Typhoon rising, 50K X 50K maps, hosts 150 ppl, but it can turn into a real slide-show combat cuz of the laggers like me
Now if you got a screammer of a connection, give it a try, But BHD is the game for me
But if you want mindless spray & prays, stick with Sam lol
If I only knew a 1/4 of what I think I know