This is a pretty interesting concept! Maybe for the horror one you could add the objective to collect items that spawn so it's not just avoiding the ghosts? I agree with LDPFDEV with their points including that the map is pretty tiny, maybe you could try a map with some more verticality + maybe it changes every few rounds? I.E. Some pillars randomly emerge from the ground to create obstacles or move themselves into the ground to make more space for walking around, which creates variation. Also, increasing the walk speed a bit could help too!
I think the HUD could be cleaned up a bit, there's a big dark transparent panel that could probably be removed since it feels like part of the player's vision is somewhat blocked. If the elements like the controls need to pop out more, maybe you could give them some kind of black outline or a drop shadow?
I really dig the idea that you gotta keep switching up your play style, even the weapon changes between Stealth and Shooter that's pretty dope! Hard to tell if it would be even better if there were more modes it switches between or if each mode had more depth, maybe more depth for each mode, I dunno.