Edit:
Why, oh why, does Dave have only 3 charisma? He is the David Koresh of DC. I will commit to Dave if you allow me to sap from other special's so that his charisma is 10.
No fast travel "not allowed" was only on Big daddys self imposed rules.
I normally dont use vats or pipboy pauseing in combat. but you can bet I am for this one.
Playing Three dog I had an odd occurence ... atleast for the amount of time ive played.
I was headin to the super duper, when I ran accross a couple of Mad Brahmin (never seen those before)
Anyways , I had to Vats and get criticals ... but still , with the 10mm , I used a heck of alot of amo to put em down.
But just when the second one was gona go down im guessing. I get a half way CTD (my system almost always runs stable)\
It acted like it wanted to go to window mode , with the window header accross the middle , then I hear "corny in kansas"
Sorta sureal

I'm with Big Daddy though, go on a Brahmin-tipping spree as an act of revenge. 

I updated the OP. And no, you don't have to do a speed run at all. If you want to complete all of the DLCs, well, the more the better! I've spent around a month on my Caesar play-through in the New Vegas thread, and I'm pretty much taking my time, wandering around, dealing with small problems (raiders and the like) and now I'm going to do several of the DLCs. If you complete all of the DLCs you'll be the first person in the Fallout 3 challenge to complete the main quest and all 5 DLCs.






Stupid dog.
I'll mark Lucas on the OP.