Chief's speed is increased to his sprint speed and the sprint mechanic is removed.

2x damage for the warthog's minigun

... without wishing to say every non-headshot gun needs 3x damage.. rework this miserable game such that you actually WANT to use AR/Storm rifle on legendary difficulty!

Battle rifle's zoom lock on should have increased range.. if at all possible consider a scope with more zoom. As it sits, the zoom is effectively useless beyond point blank range. I didnt use covenant carbine however similar changes to it would be nice, if not done already.

I go back and forth on whether to add the pistol in with the above^^ as doing so would effectively re-create the CE pistol

Fuel rod gun bullet velocity 2x increase? hypothetical.

A lot of this has to do with the changes this mod brings to the range that combat takes place, some of it is just things I think would be cool in H4.