Another way to do this is to start a wingman game with 3 bots, round time 2 minutes and victory limit 10. There will be 3 teams, you will be with a bot. And then, nothing is easier than to destroy two teams attacking each other with the army of two (you and your bot). Takes 4 rounds to win the game.
Maybe there is a better combination of bots, but this is what worked for me.
The EASIEST way is to get a friend, 8 bots, easy difficulty. We've almost everytime won in the second round.
-Flood
-Gold Rush
-Fuel Station