Well halo is a really bad game to compare other FPS's to because they pretty much exclude any type of story in favor of just killing for the sake of killing. It seems that you are big into RPGs because of the story and you gotta remember that Borderlands is part RPG. While there is a lot of killing to satisfy FPS nerds there will be a story and point to everything. And with the different classes having different roles such as healing this will be an FPS that is new and refreshing. Don't expect this to be the normal FPS we have seen before.