as someone who submitted a number of tracks myself, even i am surprised with how much variation you've accomplished in such a short block of time. each track is very intense and high quality. despite the OST being for an FPS, you've managed to make a lot of your tracks memorable. great job on adding personality and depth to your tracks despite the time crunch!
if i could give some nitpicky feedback, you could've definitely done a bit more with your percussion in some tracks. most of the movement in these tracks comes from instrumentation and i recommend playing around with percussion instrumentation in advance of the next jam.
wow. lots to be proud of here, man. fantastic work!!!! can't wait to hear more from you.