Some guns are so fun to use, but with extreme rate of fire such as Vot smg and pistols. Ammo is a big problem, and less attractive to use. These guns should have easy to get mods unique to them that regen ammo.

The problem with spike ammo regen is it may hinder the fluidity of combat, having to run back to the spike for ammo, sure it's more convenient then ammo boxes, because it will be closer distance. But you still have to run back.

I can understand using pike as damage boost for choke points, and limited to small area. Otherwise it would be OP. But ammo should be overabundance in this game. You shouldn't have to run to places for ammo and screw up the combat pace fluidity.

As for perks, we need some perk that will double or triple the ammo pool for certain class of guns, such as extreme rof guns. Ammo regen perk would solve it all together.