I'm a little fuzzy on the precise effects of events that occur during a sequence of defense rolls in some cases.

1. During an attack on a hex with two units, while resolving the defense roll on the first unit, a Low Crawl occurs and the second unit crawls out of the hex. Does it roll defense? (I'd say, 'yes', based on O27.3.4). More interestingly, which hex does it use for it's terrain modifier, the original hex or the one it crawled to? Logically, I'd say the original hex, but I haven't found a relevant rule (it just makes sense to me).

2. Same scenario, Battle Harden happens and the second unit gains veteran status. Does it gain the morale modifier for the roll? I'd say 'yes', but I'm not sure why.

3. Same scenario, but this time a third unit appears (e.g. the Hero event). Does the new unit roll defense? I'd say 'no', again based on the wording of O27.3.4.

Thanks in advance!

Great game, btw, and great support of it!