Thanks so much for playing!
i suggest adding weapons like a saber sword or just a huge metal rod to beat up the crawlers(i hate em for some reasons),after killing an enemy there will be a chance of dropping supply like ammunitions.(with the melee weapons)
I plan to have different options for the melee attacks in the future, like you'll have perhaps a chargeable energy lance that acts like a shield and ram which will allow you to plow through buildings and enemies, and also maybe a much stronger plasma whip that has further distance.
I think for supplies certain enemy trucks will drop them. I also wanted to have different colored shipping containers that have ammo if you bust them open, but I ran out of time to add that in this build. Next one will have it for sure.