1. EB is not meant to play as blitzkrieg. Progress as fast as you can afford, meaning conquer with an offensive-army, afterwards send garrison troops and a governor into the newly aquired settlement, you won't have problems in most cases with that strategy.

2.
Quote Originally Posted by Joseph View Post
I think its the buggiest game I ever tried to play
That is simply false. The bug you received in your campaign is a well known vanilla issue, it is only slightly increased as EB includes more settlements as standard RTW. EB is, seen not only in comparison to its compexicity, a very stable build, however, if you come over bugs, feel free to report them (but honestly, in most times these 'bugs' are features of EB or hard-coded left-overs from vanilla).

XSamatan