system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] If Warmachine is built off the Mk.II Iron Man suit, does that mean it has built in flaws and restrictions that Tony later rectified, or did he go back and refine it when Rhodey started using it?
gpt
The War Machine armor gets its own upgrades alongside the Iron Man armor.

Rhodey upgrades to War Machine Mark III upon joining the Avengers after Age of Ultron. This is the suit he wears in Civil War, and it has fancy new tech like sonic cannons used to incapacitate Wanda, that glowing stun baton, and of course, even more guns (capable of shredding an entire 18-wheeler truck in a few seconds).

After the Mk III gets damaged by Vision, Rhodey wears the Mk IV in Infinity War and the Mk V in Endgame.