Sorry folks, but AFAIK HUD editors are not possible.
And even if by some miracle it would be possible - it would still cost tons of effort. Unneeded effort.
#
"What do you want your HuD to look like?"
Something future-styled, definitely nothing like MW4 interface.
What I'd like to have are some indicators next to crosshair - heat most importantly, but also perhaps reload progress of currently selected weapon (not weapon group, but weapon - the one you switch between with up/down arrows). This would give me a chance for optimal weapon usage (now looking at top-right part of the screen during combat isn't very practical...)
I'd also love to have radar locations re-thought, perhaps also make it a little bit bigger.
What I would like NOT to see is:
Different radar colour for unpiloted Mech
Custom outlines of enemy tanks/mechs instead of the generic one
Zoom only zooms in a central square within your HUD, not the whole window
^ So the things that essentially make people use their eyes less than the radar.