Modpack, I think, is HSFX 7.0.3 and activator... hm... the JGSME? But I just drop the files/folders in the Mod folder without using JGSME.
EDIT: JGSME does have a few mods enabled though. Could some mod interfere with the stock tanks/cars .ini and give that crash?
EDIT2: Inside (A) Stock Tanks and (B) Stock Vehicle folders there are 3 versions: DBW - which I guess is the mod Dark Blue World... which I don't have; SAS - which is different from HSFX, so I also don't have that; Basic mod - I guess this applies for me?
Everyone has to start somewhere and all began as noobs, there is no shame in that. However, these enhancements are NOT simple drop-ins. A number of INI edits are necessary and even the most experienced modders can slip up on a simple typo.
Therefore; don't even think of installing mods until you understand how to activate and use your
logfile. A working Logfile is essential, repeat,
essential for any attempt to add new vehicles, ships and aircraft to the sim.
Scrolling to the base of your logfile after a crash highlights the problem immediately. Working without it is groping around in the dark without a flashlight.
https://www.sas1946.com/main/index.php/topic,13457.msg141587.html#msg141587