For those of you a little out of the loop with the gaming world, the first Resistance game, released in 2006, was a PS3 launch title made to compete with Xbox's Halo series. Resistance 3, released today, is a first-person-shooter that pits humans and aliens (Chimera) against one another and under the multiplayer preference, you are assigned to one race. There are only two game types within the beta, team death match and chain reaction (think capture the flag); however, you may find yourself partnered with... less than ideal teammates, in which case team death match will be your mode of choice.
Resistance 3 feels very much like a mix between Call of Duty and Killzone. There are “killstreaks” that can be used after three, six and nine successful kills (as opposed to Call of Duty's 3,5,7 model) and your opponents seem to take quite a few hits before going down -- a full magazine if you aren't getting headshots. This highlights a key strategy to the gunplay: location, location, location! If your opponents are decent and you get caught from behind, from the high ground or playing two against one? You're done.
Trying to "Rambo" your way through a team can definitely work if you play your cards right but certainly has its place within the overarching precedent of teamwork. Now, I'm not saying that the shotgun is overpowered, but... it ain't bad by any means. The guns each have different ranges and situations that display their usefulness. Obviously, you don't want to try to shoot a sniper with a machine gun while he is across the map. You need to close the distance and get in that ass.
Although there were several patches to fix as well as glitches and stability issues, when the game gets going and everything is running smoothly, it's awesome. The increased health, different pace, and different “killstreaks” may take some getting used to but the multiplayer experience definitely stands with the best.