I only inserted the obj file in the 18.dat, and left the career start I modified as to be able to drive an 18 type in 1943.
You were right mikhayl, it works but it lacks the plane catapult :
I'm gonna try with the other dat, the orange sub one and see what gives since that one had the complete sub.
stil orange but complete...
here's in s3d to the left the file with the 5.1 .dat and orange sub, to the right the 6 version, with the missing catapult :
same amount of polygons so they should look the same ?????