Units given an order to attack a specific enemy unit will ignore all other ones to only fire at the designated target. This include units in "HOLD FIRE" stance. As illustrated below:

Although, if the unit lose sight of its target, it will revert to default behaviour.
CHIMERA:
The "Field Engineer Kit" upgrade is now only available once SHIELD protocole is unlocked.
CARTEL:
The "Capture vehicles" button was removed from the the infantry's orders panel. Although the upgrade allowing it is not present in this version, the button still was.