From Robert A. Heinlein's novel Starship Trooper.
This suit is the smallest mechanized combat system of the EFDF (Earth Federation Defense Forces): this man-sized unit contains a heavily armored exosqueleton and multi-purpose armament. The "waldos" actuators system times trooper’s strength by about 10 while thrusters and verniers increase all-terrain maneuverability and speed. Backpack feature includes main engine and batteries to supply actuators and waldos as well as some additional verniers, ammos and advanced sensors. Complementary weapons usually are a standard assault rifle with grenade or rocket launcher; tactic atomic mines are also rather common. The suit weights about one ton.
Made with pencil & marker in 1993