Really good game! Very fun to play, it gave me a lot of DOOM vibes. The music really matches the gameplay. The abilities are really well balanced (all of them are useful but not OP).
I think you could add some parkour elements, like walljumps, slopes, ecc. The game makes you move a lot and that's great, but you could bring it to the next level with those.
Also, I find out that you can drop heal zones also in mid-air, and that's kinda weird.
Keep it up!