If you load the game and enter skirmish mode, and it freezes and jutters like a broken recorde the reason for this is you have got another mod like the elven alliance, to fix this you dont need to unistall anything, just load up the elven alliance and just get to skirmish play as gondor, rohan, mordor, isengard
BUT NOT ELVES then try the 4th age mod again it should be fixed, same for other mods, for example same for the dwarf holds.... basically if you have a mod that adds a faction (1 or more) you have to finish the game playing the original factions (gondor, rohan, mordor, isengard) then just exit then you can play your 4th age, KOTW or whatever
If it comes up with an error Where it states:
Rohan Melee damge (bla bal bla) or Timetillbuildingrepair
Then you need to go the start menu, all progams, EA GAMES, The Battle For Middle-Earth , then straight across to check for updates.
A notice saying you have patches availble comes ups, click yes or ok (been a while since ive patched the game) then a notice (MIGHT) come up saying bla bla bla
There will be three options (only two are important
Block and
unblock click unblock then it will load up and then retry the Elven alliance, the 4th age KOTW (or whatever mod you have)
IF IT DOESN'T WORK THEN UNISTALL THE MOD AND REINSTALL IT