SEALs! Cool, they're a lot like Tanya really, they plant C4 and mow down infantry. The only real difference between them and Tanya is that they seem to have a shorter range. Anyway, begin by moving the seals to the west. The 'S' trick for Tanya works just as well for the SEALs. You'll come across a small outpost which you can eliminate and gain some GIs and grizzly tanks. Shortly after, several engineers will be transport via nighthawk (I put them back in the chopper so they are better protected) and you are going to need them. Once you get to the base, stay away! Tesla troopers are powering those coils and they have a longer range. Here's what I did to get past this problem: Deploy your GIs and protect the engineers with them, keep the tanks in that group as well. Send the SEALs around to the southeast where there is a beach, swim around to the south of the enemy base. From here, be careful of the war miners as SEALs aren't very good at destroying vehicles.

Head into the base, very simple eh? And, once again the Soviets have set up explosive barrels near the walls of their base. Destroy the barrels and head back to your main forces - there should be a nice hole in the wall for you to get through safely now. Bring everyone in through that hole and capture the mayan pyramid that looks like a prism tower with your engineers - grab a power plant too. Cool, huh? This is not so difficult once you have control of both prism towers and two power plants. Once that is achieved you have a large zone of control around the enemy base. Use your SEALs to lure the remaining tanks toward a prism tower but stay away from the tesla coils that are being powered by tesla troopers. They can fire without power.

I captured the enemy construction yard and immediately built a barracks next to it. This really pissed the Soviets off and they sent everything they had at me (even the troopers powering the tesla coils). I pumped out dozens of conscripts and eliminated the tanks that way, not so flashy but it worked. While the Soviets are distracted send in your engineers to capture their barracks and war factory and it's pretty much over. You can handle those sentry guns, right?