Their mission is simple, move ahead of the force of standard combat units, past the Azologoth and hammer down on the Advancing CPD force. Buy some time for the extraction to occur.
This is excellent Unit Management.....if all goes to plan. If they fail then the extraction party will be compromised and weakened.
In reality the commander should have deployed atleast 6 to engage and stop the enemy.
Having just two does not account for what can happen on the way