So usually I would kill the two guys at the stairs, pick up some painkillers in the little room on the right. Then I'd run out of the room and that one guy with the shotty would pop out and try to shoot me (usually getting a shot off, even in bullet time). This is what I'm talking about when I say there is a lot of memorization. The guy just pops out of a wall and you are at an angle that leaves it very hard for you to see him (it's cheap). Basically, you have to expose yourself to kill him. Then you got to the little roof area, where there is a piece of cover in the middle. The building would buckle again, making you stumble and then three guys pop out above you. If you don't know they are coming (and are not in cover) they come out and shoot you pretty quickly. I guess you could go into bullet time but the position the game places you in is very cheap and you are at a big disadvantage. Then after you kill those guys, the game triggers a quick cutscene showing the heavy dude on the opposite end of the roof. If you don't know he is coming and you are caught on the wrong side of cover, you are dead. Still even if you are in cover and using bullet time it was extremely hard for me to get enough headshots off to kill the guy. It ended up working on about my 50th attempt and I had barely any life left. This game also has enemies that do the Uncharted dance when they're being shot at .. doding your bullets by moving their head and bodies back and forth. it's annoying.