I think I have found the first bug of the beta release, so I might as well start a new thread...
I tried a custom map on the brittish grasslands map, as per Honorius' suggestion, to try out the units of Argos and Mycenae...
I chose one unit of each (11 in total for both)
A) the Argive "barea harmata" (heavy chariots) appear as "heavy infantry" instead of "heavy cavalry" (as the Mycenean chariots do) and are not mounted on a chariot at all... instead they start on foot and when instructed to move they just play a riding animation but go nowhere
b) as soon as the first mycenean unit touched the Argive non-chariots, CTD... (prolly related issues)
cheers