LOTR Battle for middle earth - PROBLEMS
 

i have got to rohan act2 on the good side. and when i try to defend the east or the west side. i start off fine but suddenly it says i have been defeated, but theres nothing attacking me, and nothing attacking my home base. its happened a few times now on both levels, anybody have any help.

Registry problems! You must have went online with a crack or tried to go online with an invalid CD key. Save that mission, uninstall the game, when delete saved files is prompted hit NO, then isntall the game. The game should work with a crack again and units shouldn't explode.
If the game is orginial with out a crack and original CD try to uninstal and re-install, if problems continue contact EA tech support :P!