I'm only installing the TMO2.5 mod and no others at this time until I can get it to work. I'm pretty sure I'm using version 1.5 as I also have the U-boat missions. I don't get the errors until the game is over 90% loaded on the progress bar.
JSGME is installed in the SHIV folder under the \steamapps\common folder and I've created a MODS folder in the same folder to place TMO2.5 as directed by JSGME. JSGME sees TMO2.5 fine and installs it without any errors coming up during the install.
I wasn't sure if this was a problem related to using the downloaded version of the game from Steam.
I'm downloading TMO2.5 once again just to give it another shot. Hope I can get it to work as playing the stock game leaves a great deal to be desired. I appreciate ya'll help.