It could have been great if they went into more depth with the classes and characters etc.. and the storey is fairly naff.
As it is its just a 3 play coop with slightly different looking characters with exactly the same guns and health/armour and abilites with a slightly different "special" every now and again.
Once you have completed the main story line there is very little content to keep you playing.. and it takes a massive grind to get half decent guns and armour etc.
There are like 6 missions that you can do online "Strike Missions" (3 player coop mode with friends/matchmaking), or you can re-do the main story missions (on varying difficulty).. or play PvP which is a carbon copy of Halo multiplayer which I hated.
There is finally something called Raids (1 normal 1 DLC) which requires 6 friends (No matchmaking) and is impossible to solo or with just a friend or 2.. This is probably the most entertaining and varied gameplay.. but unless you have 6 friends all playing at the same time your stuck doing the same old **** :lol:
on the surface and first play through its quite interesting and fun. it just gets old very quickly once you have finished the story once