How do i get the 5 tiger Generals Achievement?

[Brontanius]

I have started about 12-13 attempts at liu bei and have attempted to follow multiple guides and tips but i cant seem to get them. I have even found ways to discover the two factions(ma teng/gongsun du) on turn 1 and have female generals for marriage by turn 2 but neither of the ♥♥♥♥♥♥♥ want to marry in for the achievement. When i tried to conquer china, ma chao managed to kill himself off before i could get him and the other one just kept faction hopping to the point where i had to fight him in the last territory and he ♥♥♥♥♥♥♥ died aswell.

[Cryme Tyme]

ma chao starts the game around 16, so 2 yrs before you can find and search for marriage. as liu bei you start with 2 already, zhao yun is fairly easy to get too, with huang zhang under liu biao, you either be very friendly and consolidate his faction or use a spy and lower his loyalty.

EDIT: sometimes you can get the disobidient tiger wei yan on random events or global officer pool.