For the Hardcore Chemistry Fans out there, Chew upon this:
I just noticed that BOMB actually behaves more like Anti-matter than AMTR does. To start, Anti-matter explodes when touching matter in reality, whereas AMTR doesn't. BOMB, however, actually explodes when touching other partices. Second, BOMB has that cool glow effect; I don't know about you, but glowing seems to identify with anti-matter with me more than grey does. ;^)
Now, I'm not asking for a redesign of AMTR or BOMB, I just thought it was an interesting point that nobody (at least in my knowledge) has bought up before.
BOMB explodes, in an explosion with many particles. AMTR destroys particles, and is used without explosions. It isn't realistic, but that is how it works in the game.
Wikipedia says that antimatter + matter makes other forms of energy, as heat or gamma rays or light. Ace: antimatter + matter ANNIHILATE eachother, not swallow.