I think once there are more limits in the gameplay, the game will be more
dynamic and fun.
-weapon, ammo, health picksups
-transporters / portals
-force field doors that go on and off in a specific sequence(where you can see though, but not shoot though)
-jumppads?, where you somehow get accelerated to a new x,y position
-maybe a 3rd dimension in the sense of platforms:
what I mean are areas that can be accessed from the floor plane though staircases,
tranporters and jumppads.
On the platform the player can jump down any time.
Around the platform is an area marked as “too low” in the sense,
that you can not shoot (and look) from the floor onto the platform from there as you are too close
to shoot from this angle.
From the platform you can shoot down, except onto the marked area.
when not beeing directly at the edge.
This gives the game another cover dynamic and movement limit apart from the walls/corners.