you played nydus mission or take out air mission? eitherway, both missions i suggest at least 3 starports or more for BC spam > yamato spam kerrigan

ultralisks its own is very easy to handle with, siege tanks will do, alot of them, why ppl only care about the queen is because she always mess up your defense and allows others to come in, do not use marines against ultralisks they chew them really quick plus your siege tanks will do area damage and it will run into your marines.

if you unable to stop them, use buildings to stop them, left entrance should be easy few supply depots will do, drop 1 or 2 scv there to repair or incase the supply depot is dead. after putting up supply depots, sell off the bunker and move your marines away, they are useless, put ~10 siege tanks there, do not put siege tank too near to the supply depot, make sure a hydra cant shoot the tank when its just outside of the supply depot and allows SCV to repair supply depots. have 1 or 2 turrets for overlords, then that entrance should be ok d, unless the queen able to reach them.

for upper right entrance, put tanks on cliff, both of them, left and right of the entrance, as for the entrance right north of your bunker there, either use supply depot or make barracks elsewhere and land there, ~10 siege tanks there 2. ultralisks have 600hp ? if you did your siege tank upgrade which +40 damage to main target, and 1-2 weapon upgrade, should take out an ultralisks with few shots, basically 1 shot from each tank, so they wont be able to reach your blocking buildings. leave some scv here too.

to make this level easy, you should have:-
pick scatter the sky mission, where there are no fliers
siege tank upgrade both +40 damage to main target and -75% damage to ally area damage
air deploy supply depots, which you can make blockings in seconds
put 2-3 siege tank INSIDE your base, for worms, they dont have a chance to eject anything.
regeneration armor, which slowly repair damage for vehicle and ship

yeah there is but once you load those saved files, it just brings me back to list of campaigns.

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Added on August 12, 2010, 7:00 pmi'll try my other saved files later to confirm this. sad case. can't play LV again.

dont you wanna do the last achievement ?