Okay, we assume that the player killed 31/32 bc the 32 player is himself. What is he going to do with 31 ammo?? 30 ammo costs a jetpack. So if you make it 5 ammo per kill he will have like 125 ammo or something. And don't consider that reimbursing because after mod he has no jetpack no bat not a good weapon and he will spent these ammo to buy jp, gold ak, bat, armor... so think about it more..
its not the idea of how fast they make ammo is the idea that the game gets boring after mod cuz he must start from 0 once ammo again. some people leave after mod. And by this fact is being hold our server activity too. if you reward them and they see that they have ammo they keep playing.