Story line

Depends what you mean by "lost" exactly-as stated, just because a unit isn't in multiplayer doesn't mean it isn't around. Even when there aren't explanations for units not being playable it doesn't bug me-it's well established that the total terran, protoss and zerg arsenals in regards to the likes of infantry, vehicles and starships is many times larger than what we can play with, even in the campaign.

good point but im just bugged by not being able to use a classic units if its in camp or they say what happened to it then I will be happy :D