I have confirmed a suspicion that any interaction on my part with the campaign strategic map causes CTD on loading tactical game (via 'start battle').
Or if the battle involves units present from previous action that once I try to load their battle (after OOB screen) the game will CTD.
I am able to load a battle only if the units were placed by the computer - ie the initial campaign deployment of the battle groups.
Disappointing.
Game version 1.2.0, log.lst & cppcrash dump samples appended.
Looks like I will just go back to ToW 1 & 2 - they always run fine for me...