Thank you for your kind words. I sadly ran out of time on the gameover mechanic so instead the player just doesn't die. I figured there was enough ammo placed around but:
a) I didn't make it clear that the yellow portions on enemies are a weakspot that deal 2x damage, that might have saved ammo
and
b) I must have playtested the games too many times and rarely missed so the ammo was enough for me, should get someone else to playtest in the future!