The only thing I didn't like was that, although interaction between players is really important, it's mainly between human players, and the in-game characters don't really interact with each other. I mean, for example, when someone helps another player up, and the other shoots, or when one player puts a machine gun on another's shoulder, which is common in other cooperative shooters, it's practically not used here. There is healing of wounded players, sometimes you need to help a teammate who is stuck on a cliff, and that's almost it. For such a game, that's not enough.
The only thing I didn't like was that, although interaction between players is really important, it's mainly between human players, and the in-game characters don't really interact with each other. I mean, for example, when someone helps another player up, and the other shoots, or when one player puts a machine gun on another's shoulder, which is common in other cooperative shooters, it's practically not used here. There is healing of wounded players, sometimes you need to help a teammate who is stuck on a cliff, and that's almost it. For such a game, that's not enough.