Yeah, other than hitting A to jump over obstacles when you're beside one, there's no jumping in either GOW game. It's meant to be a tactical "take cover and return fire from behind it" game, but the multiplayer is anything but that. The shotgun was overpowered in the first game, so their answer to it in this sequel for some unknown reason was to make it even more powerful, meaning that what determines the winner of a game is who's best at the "two piece" manuever - hitting someone with the butt of the shotgun to stun them and then blind-firing a shot into them to finish them off.
Also the game is really laggy and buggy in multiplayer, which means the host pretty much wins, hands down. You fire at the host with a shotgun or rifle for five full seconds while he's running toward you then he chainsaws you to death. People were constantly quitting matches and reconnecting to try and find a match with a decent connection, and the developers' answer to this?
In the last patch they changed it so you can't leave a match in progress. I shit you not. That was their answer.