The second one is pretty much directly a Die Hard parody – new building, party, execs off doing drugs, dead guy in the lift. I'm looking forward to that one, I wouldn't be surprised if there's a lot more in there.
Most combat missions are bad guys crashing somewhere. It can be hired killers at a party, cops at a failed robbery, rival gang in a setup or a home invasion. It's just how games and action movies work. And it shows off shooting mechanics without revealing too much about the story.
There's the one at the end - I'm guessing the other is the police raid on the drug lab at the beginning? Personally I wouldn't have put them in the same bucket.