You're most likely thinking of Battlezone from 1980. Funnily enough, the 3D tech that was developed for that game was repurposed by Atari to create a tank simul

You're most likely thinking of Battlezone from 1980. Funnily enough, the 3D tech that was developed for that game was repurposed by Atari to create a tank simulator for use by the Army, though apparently it never went further than the prototype stage. https://en.m.wikipedia.org/wiki/Battlezone_(1980_video_game)#The_Bradley_Trainer https://en.m.wikipedia.org/wiki/Battlezone_(1980_video_game)...