After destroying Maynard, the guard and finally Patti, I started getting spammed with "security wants to grab zapper but cannot find it" messages and the game started slowing down to a crawl.
Also for some reason I can't seem to figure out how to climb ladders yet, might just be me being retarded here though.
Ok, now I think I got it, you grab left and right and left and right AND hold jump at the same time.
Hmm, now I seem to be stuck on the floor and my center of looking around seems to be off. Happened after security was trying to take me to the brig, could it be related to that? Either way, seems like I'm softlocked now.
On this try I got the rat! Maynard was in the screwdriver room so I asked him to come to the terminal, used that to get into the screwdriver room, got the screwdriver, threw it around so Maynard comes back from the terminal, use that to get out, unscrew the vent behind the boxes, and climb up the ladder to get to the rat.
Grabbing, using tools etc really lends itself to puzzles like this well. Feels like there is a lot of stuff to do in here and I like that.