...regarding Jumping over two tiles, and diagonally over one
Yes, pls!
At least the 2 tiles on roof level would make a lot of sense to actually find a few roofs to jump to and fro. Wouldn't see it necessary on ground level and could cope without diagonal jumps.

Quick question about the dual burst/auto. Does it also cover the underbarrel grenade launchers and the underbarrel weapons, or is it main weapon only?
Also, other than the HeavyGun tag, is there anything else needing to be added to the XML Editor?

Is there a modifier for weapon recoil? I've got muzzle brake attachments that in theory take some of the bite out of recoil. Also, I've got the Gyrojet pistols in my mods, it would be reasonable to make them recoilless.

Question regarding the energy cost on shooting: How does the AI factor in the energy cost? As in, how do you make sure the AI doesn't knock itself out by lifting sniper rifles around?

Just wondering... if jumping is possible, would it be possible to add jumping from a roof down on an enemy? Like jumping to his position and knocking him to the next tile or sth. Bear with me, I played a lot of Batman games in the last nights