This strategy is a little risky that Im going to propose but its become a staple for me and a friend when we play on a team together. We both like to gamble a bit. I don’t have a board in front of me so sorry if there is some confusion. Oh we do not play with any optional rules or national advantages.
Turn 1 we take the Russian bomber and fighter and attack the German navy to kill everything but the sub. Then attack the two German owned countries bordering Moscow. You will have to give up Karelia easily turn 1 to Germany. But thats a good trade off to get rid of the German northern navy and get a buffer for Moscow. This will allow GB to land troops on the Scandinavian countries as early as turn one with out a threat of Germany killing the GB navy.