Wow! I knew I'd like this game but it was way more fun than I expected. Love the little dialogue between the chief and chloe. Lacking a loop mechanic works out better for this game. You keep the gameplay simple but fun and make up for it by way of story and writing which is awesome!
The only things I can really critique are the audio volume (SFX mainly the culprit here) and not telling the player they can wall-jump (surprised the heck out me and made the game even more fun when I found out).