hmm that's weird you say that about svers weapons because whenever I pick up guns from raven or valor, I just go around destroying everyone and everything until I run out of ammo or 2-3 guys gang up on me. I would say that svers weapons have more punch per bullet, but they shoot far FAR slower which makes it harder to kill people because you have to aim more.
I could be wrong on this, but I'm pretty sure that most of the people in sver are older than the people in raven or especially valor which makes them more likely to work together/use mics/actually follow orders than the 12 -year-olds in Valor who just go off commando/CoD4 style. (no offense meant to any 12-year olds who don't do that - you're a rare breed) Given that guerrilla did an awesome job making you pretty much have to work together to accomplish anything, this would give sver an advantage and possibly explain why svers weapons seem more powerful - the people are actually taking a split second to aim instead of just blazing away indiscriminately.
Regardless, I love this game though I wish they would fix that glitch where the "viewscreen" in the respawn screen goes blank and you can't respawn until the game is over...
Not trying to be a fanboy. Of course, it's hard when you own the best console eve... dang it