New enemy types

The game already has some of the most necessary enemy types, but it could definitely have more. Static ones especially.

You could add enemies such as:

• static turrets (or slowly walking armed drones)

• lots of cameras depending on map difficulty or modifier (+ camera room that lets you disable or access the cameras

• the current tanks except they’re armed with different guns than shotguns (grenade launcher, minigun, double handed with desert eagles or smgs / assault rifles)

• current melee type enemies with stun batons

• current snipers with incendiary ammo

• secret ops that spawn nearby and make almost no noise

The turrets and cameras can be tied to new skills. Skills that let you make the turrets, drones or cameras turn friendly for example if you sneak up to them and hack them or (as an upgraded skill) lets you remotely hack them from the special room I mentioned.