>>534787563
>now do it with only 4*s and see if it's easy
Are you using only 4 stars?
Don't place idiotic restrictions.
I already handicapped myself a lot for an achievement, by using units who aren't being shilled at all, and won too hard to get the achievement.

>>534410854
Sometimes a team only needs to be stupid rather than good.
There's more fun to be had in the optional for-fun modes of the game than time trial autism.