They have it already pretty easy. Stop giving them even more unfair advantages. When I see an invader killing 3 people within the first 4 seconds with Truth, then there is something horribly wrong with the economy. Despite the fact that heavy ammo is a big crutch for invaders, some exotics/heavy guns do perform far superior than other guns of their type. For example the menageria heavy machine gun... It is the worst choice for pvp gunfights. The forge machine gun is a beast. Why are guns so unbalanced? Fix this Bungie. This is the main reason why I don't play Gambit at all. Edit: To make a fair point, I and others did talk about ammo changes for heavy weapons during invading. My Idea in the discussion was, that the ammo is still there for the invader, but both, Invader and defenders, can't damage each other with heavy weapons. This would provide usage of everything else than heavy ammo.