Best counter to Chrono Leg to defend your Base?
And how to deal with him in tank fights as S or A?
To counter them in your base -- tesla coil/prism tower ready (and deploy outside chrono's range), deso, several dogs, walls, depends how many he has
As soviet you just have to be careful that you are controlling your tanks correctly when one gets chronoed. If one of your tanks gets chronoed and its part of your group you can't move them anymore so you have to unselect/renumber the tank(s) being chronoed in order to keep moving. As allied you can use prisms/rockies/planes/etc. As soviet probably not as big of a deal as if you're attacking you should win, so focus more on tank control. If you have dogs you can always send them manually to his chrono though.