This is why the hovering limbs annoy me. Plus we know from other Forerunner tech that anti-gravity tech was utterly trivial to them, and all pre-Promethean Forerunner bots used it.

If the Prometheans needed limbs, they should've at least been physically attached.

: All you need is a hovering, armoured, sphere and guns floating near it. No
: stocks no triggers, etc.

Basically the Sentinels from Ghosts of Onyx then. It's funny when those were a lot more formidable than the Didact's supposed ultimate anti-Flood army. The army that his loyal troops sacrificed their biological forms for, despite the very same faction of Forerunners previously showing the capability for deploying millions of superior drones that didn't necessitate turning people into tortured abominations.