I thought for a moment my game was an only shooter in this jam!
Let's start with what I liked. The graphics and the lightning effects were pretty impressive! It worked well to create a more "tactical" atmosphere.
Sound needs some work. Players gun sounds strange, and other than that there is only loud "BLAM" of the enemy guns. Then again- it's not easy to have good sounds in a two week jam.
What took from the game the most was enemy AI. Baddies either didn't react to you, or killed me instantly with perfect aim.
Over all, I can see it as an enjoyable game, if it was more polished.