1. I liked Brian Tyler's score.
2. I liked the O.W.L.F contamination display on the colonel's monitor projecting how far the aliens will spread in 48 hours. Even though he has no idea what the aliens are or how they work. It's like he read the script or something.
3. I liked how the aliens on the rooftop awkwardly and slowly bobbled around like a bunch of clueless sheep instead of running straight at the humans and killing them instantly.
4. I liked when Jesse, the girl who incountered Aliens multiple times and stuck with the group, inexplicably decided to be a coward and run away after the group kills an alien. I guess the strause brothers just really wanted her to get hit with Wolf's shuriken.