I read that you focused on 3D modeling. I like the gun and graphic style give it to the gun and enemies. Good work! Keep working on it and the game to see how it will progress.
The gameplay is simple, as any first person shooter, but I like it, you can improve the gameplay adding maybe some "launch and came closer" as second way of moving and giving some twist to the game play. (Like some kind of hook).
For me it sticks to the theme, so all good!
Have a nice jam!