Raven Programmer Jake "the Gent" Simpson updated his .plan with a bunch of stuff on his GDC experiences, and his update includes this bit on the recently released Heretic II Enhancement Pack:

So the EP is out there. And it has a couple of bugs in it. This highlights our blind spot of real Internet testing. QA at activision didn't catch a couple of bugs, but then we are lucky we got any QA time at all, since they had their hands full of Civ 2 and a golf game. I just want to say thank you to them for putting in the time they did. Anyway, we ARE going to fix the bugs that cropped up. Infact, they are fixed, and QA is once again doing their thing on the code. Its just a question of time before we release this fix. When its released, I'll do a .plan update listing what we fixed and why.