Forum:Lack of campaign?

Is it just me, or is ME2's campaign really short?(I'm at the point where I'm able to go into the Omega 4 relay for the Suicide mission, so no I haven't finished campaign yet, so forgive me if I make some misconceptions) I know there are a bunch of other planets and all that, but still, I ussually buy games for their campaign, which is the best part.

Also,(I haven't played ME1, either) why did all the armor/weapons get removed? I was just looking through the wiki, and saw a bunch of armor/weapons in ME1, and in ME2, there really isn't that much(not much that I've seen, anyway)

What I'm basically asking is, is there a lot more to just the main missions, and the loyalty missions? I know there are a few other small missions, but I was just wondering if there were a lot more big missions out there for me to do once I'm done with campaign(If I live)