Besides the 410 ( 200 TATERS
) and stuka. what other changes have been made?
Welcome back, Squat

Changes that spring to mind in no order: 88's at all bases.
Auto transmission for gvs.
Depending how long you've been gone, a new town set up & capture parameters.
Hitting strats does affect ea sides resources in a tangible way.
M3's can resup towns with startling results.
That's what springs to mind.