Updated pics of the quad 50. Used green stuff to extend the rear section of the gunner seat. It can easily seat any 1/18 figure. Adding some other controls and wires to the modified quad 50. Note replaced the missile launchers with 2 dual missile launchers.
Will add backblast protection to the side of the launchers to protect the gunner.
Decided on using steel paint color on the armor plates. Going with weathering the plates with combination rust, dust, black, etc. May use airbrush with narrow spray to simulate a person attempt to spraypaint the steel panels, giving an inconsistent pattern. Still tossing around which way I'd go with this.
Opinions on paint scheme and quad 50 modification, please let me know.