The fourth edition of Heavy Gear RPG is up on Drivethrurpg.
You can get your copy here: https://legacy.drivethrurpg.com/product/457450/Heavy-Gear-Fourth-Edition-Roleplaying-Game-Rulebook&manufacturers_id%3D19&affiliate_id%3D4310
Lots of new Heavy Gear artwork in the book! I had fun trying to match the old school HG art style. Hope everyone enjoys the effort!