Our group has been playing together for 12 years. One guy, who well call "M" , is one of the stronger optjmizers in the group. Whenever we make new guys he always makes a top notch character that is more than capable of contributing to the party. The only problem is when he plays the role of the beat stick.

Most recent example: we encounter a group or monstrous bugs of some kind or another. There were 6 bugs up front and one huge bug in the back. First thing he does is to charge past all the smaller bugs, provoking AoO from them all (most miss) , and go straight for the big one. Now there is nothing between the party squishies and the 6 bugs. He finds himself overwhelmed by the larger one and gets eaten. The rest of the party had to change roles to try to keep the bugs off the weaker party members. Frustrating.

Would have been a good encounter too, some dumb bugs with no mind for tactics. We could have team worked the whole lot of em of we had fought as a unit.