It's the same for me.  During the patching, I got an error message that debris.wav couldn't be opened.  After the patch I started AH and watched the Preload Tex Memory with all the .tca files.  
Then I get a crash to desktop before it completes. Watching it over again it's always the same 3 files in the update that kick me: WLDCYMP_512.TCA, WXTREP12_512.TCA, and XTC1_512.TCA. 
Theres a thread in Tech Support about this too.