joint assault was different because were you very, very slow. feel free to take your time to just shoot things with your machine guns. missiles are pretty overpowered there too as they'll damn near one shot everything and you get access to some awesome ones like 5 minutes into the game.
this one's not as fast as some of the main series' games, but not slow either. it's a nice pace they got.
--
The King Wang.
Listen up Urinal Cake. I already have something that tells me if I'm too drunk when I pee on it: My friends. - Colbert.