Thanks for the feedback!
Currently, I'm working on performance improvements because if you did not notice, each wave your fps may drop by 5-10 frames after wave 3.
Anyways, the performance should be a lot better next update, and I will also add 1-2 more gamemodes (like VIB and quickmatch), more weapons, and a halloween theme.
Anyways, thank you so much for the feedback again!