Tips for Congo:
Both the South and North gates are always going to fall - but you can determine how long they hold by decisions you make. Keep them standing for as long as possible, because all the time they hold, your forces are constantly picking off the Nazis outside the walls, which means that you’ll have to deal with fewer baddies when they finally breach the gates. To keep the South Gate standing as long as possible, send it strong leadership (Cleo is the best, Sam is OK, Jeff is weak: prob send both Cleo and Sam south and keep Jeff with you, especially if you have poor shooting, as Jeff can help you pick off the truck drivers later). Also a good idea to reinforce it when you’re asked. In terms of preparations, setting up the big gun on the wall is pretty devastating to the enemy, especially in combination with the lights: that’s a very powerful combo, that will see you shooting fish in a barrel with a machine gun! Other than that, just make sure that you pick the personal role which suits your best stat, and cross your fingers. All this will help you get the best ending!