I putted around in the ISU-152. It looks real good! I really like the reload sound effects and main gun sound effects. The track squeal is also a very realistic touch. I also like the very big boom the HE makes.
I don't recognize the gunsight reticle, but assume there was some additional research put together for this thing -- above and beyond what we had come up with on the optics thread on the modding forum.
Both [E.C.] servers do have a fast redirect so you'll get all required files from there. But I recommend highly to install the AHz Beta2 pack before and delete the old files from your hdd first to prevent version conflicts.
All required files and links you'll find on my hp, just click my sig and hit "Downloads".