Hi Davi223 Re SH3 commander and GWX3 are compatible, and i do have all the necessary files for those two to run together.
did you download the GWX Comander Config file so GWX-Commander mod talk to each other also have you installed the 4Gig Patch to give SH3 more than 2gig memory .
Did you install SH3/GWX outside Program/Files x86 so to bypass all the windows security protection
make a games Folder of Drive C:/ or on a second HD install SH3/GWX There
Also did you save your game in mid patrol near land or submerged that will cause the dreaded CTD
download Links
GWX Commander Config File download Link
http://www.thegreywolves.com/downloads/
4Gig Patch Download Link
https://www.subsim.com/radioroom/dow...o=file&id=5737
are you using Dvd version of SH3 or steam download
hope this helps you to sort out the Crashing issue
regards blackswan40