What is an omega drive? It is listed on the wiki as +1000 progress when destroyed!
It's a unit spawned via cheat that gives you around 1000 metal and crystal per second, and which also gives you something like 1 million energy. It's used just for testing, mostly, but for players who want unlimited resources it is also an option. So there's an interesting penalty there in keeping with the incredible benefit it gives.
But, you'll never see one in the game any way other than the cheat.
