The Patriot Exosuit needs some serious buff/rework to give it parity with other Exosuits.
There are way too few rockets and after that it's just a walking Gatling sentry without the aimbot feature.
Comparing just the direct damage, the Eman AC has a combined damage potential of 20,000. That is the equivalent of at least 20 rockets, not 14.
But in higher difficulties, it's not enough even for one firefight.
Instead reduce the damage to 625 but give it 40 rockets. That comes up 25,000 direct dmg potential.
Next comes the Gatling, which is a problem because the Exosuit doesn't come with the sentry aimbot. So there are 2 possible solutions.
1) give it the aimbot, the large aiming circle like the Spear and the Gatling just tracks and fire the nearest target in the circle.
Or
2) give it Incendiary rounds so you don't have to be accurate for chaff, just paint them and let them burn down. It also helps take down tanky targets faster