It's not the Tesla Coil that's a problem. If anything, it's the asymmetric layout of the bases, forcing Allies to run a long way to get to the Power Plant while the Soviets can just slip in without having to walk too far in the open. Not that it really matters, since the Gap Gen is easy to hit from the bridge. Not the case with the Coil. And then there's the matter of the Flame Tower being able to hold back a few tanks at a time, while Soviets pretty much laugh at the Pillbox (talking about War Factory side defenses here). Obviously addressing all of these would likely be overkill, but I think at least one of these could be fixed.