I haven't seen this bug very often, but it has happened to me twice recently:
3 Player Game, 56K Modem host in Australia, one other 56K Modem in Australia, on Cabel Modem in Sweden. Below Normal play speed, running quite well so far.
We play with a house rule, No units allowed that have a tac bombing strength above 0. (Because of this reported bug)
Played about 14 hours, over multiple days and multiple load-saves. I lost my modem connection several times due to call waiting etc (Nothing to do with HOI at all).
There were 2 crashes which were not caused by my connection dropping out. Both happened on the exact second a Tac Bomb was attempted, by the Swedish player. He was attempting to set his Fighters to Patrol, and accidently set them to Tac Bomb. (Keep in mind they have a bombing ability of 0.... i think?)
Both times he says the crashe occured the second the fighters got to the province and attempted to bomb. In each case, he was booted CTD, and the other player & myself saved & quit.
Anyway, just thought i'd contibute my experiences.
Gezeder