Wow. This looks like an AAA game. It got fps, first-person animations, multiple weapons, enemies with AI, exploding red barrels, culling, bugs, and more. It's very ambitious for a game jam, I have to admit, and there are definitely many rough edges; The enemies rarely shot at me, I was not able to find the extraction point, sometimes I could see through the terrain, etc. So in short, impressive work. You got the skills, but the scope should probably be tuned down so you can focus on gameplay/design.