You said Orkifying; I said Orkified. In all 'seriousness' though (is that a bit of an oxymoron when used in conjunction with Orks?), I don't want to see a situation where Orks have Doom Ark cannons (in case the Necrons were snuck in somewhere between here and launch!) so I think some sort of limits need to applied.
certainly see how being able to loot tanks and fallen foes could open up a vast array of customization options for orky gear. Would not be hard to see them able to implement this into other factions with Chaos getting trophies, Space Marines getting battle honors and Eldar getting something to look fancy in while getting squished.
Even if looting would be problematic for actual gameplay balance, looting for cosmetic stuff should be a thing. Can't wait to place all these heads on my trophy rack. Of course, this would also make it necessary to give other factions a similar system.
Corpse mutilation, the proverbial teabag. Eternal Crusade would be trailblazing. I'd love to kill someone only for them to respawn and see me waving their head around on a stick. And what the hell else am I going to use for trophies?
I know Orks loot anything but no. They should be able to loot everyone's stuff for resources and then use those resources to make whatever. Orks don't use Grav tanks. That's a lot of trouble for a mekboy to work and Orks don't want them because they're too much trouble for something that can't stomp or crush.
it would be a nice special rule, that they maybe get a movement increase after a kill (lore wise: so that they can get the loot before anyone else)