Game too hard to be enjoyable

[krtkllr70]

Originally Posted by Tomalak

Todd, just take a break from the Russians, and start one of the other campaigns.

How can you do that ? the other missions wont be playable for me ???only the soviets , I must asume it is because i havent finnished that campain ??
I downloaded this thing from d2d is that why? how do i play as any other army before i finnish the soviet part >????
please inform i am stumped..