3)Do Not attack Russia on G1. Force them to attack you & trade land for time as you ship units into the Mid-East to flank them from the South.
While I do like the strategy of flanking via the middle east, I think that it is better to attack Russia in round one…lightly, but take some land, and force him to expose himself to counterattack if he tries to take it back.
Also, Middle east shipping requries naval investment that I am often loathe to spend IPCS on…initially you need tanks to press Russia, later you need inf for counterattacks against US/UK landings.
Even if not going for the “tank stack”, taking a round to allow INF to get into Poland before invading Russia is not necessarily a bad idea. (Also allows troops from the Balkans vicinity to get abit closer.)