User blog comment:James12708/Reapers VS. Forerunners VS. Angels from Darksiders VS. Humanity from Halo VS. Council and humanity from Mass Effect VS. Imperium of Man/@comment-4721065-20130112104250/@comment-4721065-20130116013842

And they would need to hide from cities' CITIZENS because of ... what? You yourself admit that they have the edge in terms of combat infantry, so by that logic it's citizens that need to hide from them.

Regarding the mechanical forces, IoM melta guns and Eldar fire lances can one-shot tanks and bunkers with similar effectiveness: in fact, the Onyx gun seems practically identical in description. However, that ray takes how long to reload exactly? Given how many Orks there are and how fast they run (not to mention that cities' environment is very supportive of melee combat), they won't have time to shoot more than two individuals before they get torn apart in melee by the Orks' anti-tank specialists or heavy infantry (these drones seem to rely entirely on their shielding for defence, which only works against fast-moving objects).

Also, how many of those Seekers (or outdated War sphinxes even), are there exactly? Because Orks can construct their own Stompas and Gargants with similar (if not greater) firepower from scrap like a lot of their tech. That is of course assuming that Seekers' ablity to sweep cities is very literal and not like Covenant's ability to glass planets ... in a couple of years.