The battlefield is strewn with discarded equipment, wounded comrades, supplies, and other detritus of war that, for various reasons, you wish to recover. You must fight off the enemy while scouring the field to retrieve as many of these vital objectives as you can.
Both sides are attempting to recover a valuable relic from the front lines. It might be vital battle plans or maps, an item of spiritual significance or some other irreplaceable artefact that must be recovered at all costs.
Both sides are attempting to secure a foothold in no man's land, spearheading the attack with overwhelming firepower. For the attack to be successful, your big guns must take up key positions on the battlefield and crush the enemy's heaviest weaponry before they do the same to you.
The cruel, twisted Dark Eldar are piratical raiders who strike without warning, killing or enslaving all who stand in their way. Having fallen far into the depths of depravity, their every waking moment is dedicated to inflicting pain and suffering on the galaxy.