Might be useful to have the computer play itself with the -original- Next War scenario to see if CTDs occur.
I've been playing the original Next War (both Tension and Sudden versions) since ACOW, both PBEM and hot seat, probably at least four dozen times, maybe even 100 times to various points. Played it maybe five or six times through in TOAW4. I can't remember ever having that CTD issue happen in the original.
Anyway, here is how to reproduce in Expanded: move naval a lot, move air a lot, embark / debark some Marines for naval transport (not necessary, but seems to "help"), fly some helos around (w/ or w/o troops aboard), then scroll around the map, moving ground units, and sooner or later, it WILL ctd. It is a time sink making it do, but it do. I get the feel that it has something to do with that old hitch in the map movement that used to be in ver. 1.1 of TOAW4, the one that was fixed? Can't remember the details of that. Anyway,
It can do CTD both during NATO movement and Pact movement, just seeming randomly. But it do. That ain't gonna keep me from playing it, though!! Just have to remember: save those formation movements and just save save save every 10 or 15 minutes. Better that than losing 45 minutes.
Looking forward to it!