Guide: This mission is straightforward but its pretty easy to lose Boris or Tanya here so be careful with that. Send Boris around the Allied base to destroy the Psychic Beacon, there are a few Gatling Tanks around so be wary of them. Once you have access to Tanya, take her, Boris and the elite IFV up to Yuri's base. Destroy the walls with the IFV, then use Boris to call airstrikes on the Gatling Cannons, Tanya to deal with infantry and the elite IFV to destroy Bio Reactors. Slowly push towards the Dominator, taking down tanks, infantry and buildings as you do, eventually Yuri will be low on Power. Before destroying the Dominator, use Boris and the IFV to destroy the Slave Miners. Once they are destroyed, airstrike the Dominator and Yuri will sell all remaining buildings, eliminate the remaining forces and job done!