Amazing how people downvote my post, but don't send here any tips. *sigh*
In MA, you are supposed to build one big stack and then move it through territories. With 0 army stand guard, taking neutral loses you 1 troop, taking enemy territory loses you 0 troops.
So, get some income first 2 turns, then make a multi-attack through whole map. Here is a recording of a guy who won in 4 turns.
https://www.youtube.com/watch?v=My0lLQebAsM