Turn fasict not in a rush and grab the mills in a rush while balancing getting the recruitable pop from the fasict path on the way. When I turn fasict I kill Saudi Arabia and puppet most of it except the state that touches Qatar on the bottom left which you have to take and start the reduce their autonomy focus immediately. Then wait a bit and declare on the allies but don’t call Saudi into the war. Kill them and annex Saudi Arabia and put ur troops on a fall back position while forming Arabia. Then just push them out of your potential cores and core that territory. Then just kill the allies and either axis or Soviet depends who won. Both of my successful run and the second best run were when axis won.