using the -profiles switch you can set a modified Difficulty for a server, ie; autotrim and crosshair disabled, friendly tag enabled.
Start the client with both -server and -profiles switches in the shortcut, then exit. this creates the profiles folder.
Set the hybrid Trainee Dfficulty settings in the regular game options, then copy the player profile (MyDocuments/TOH Other Profiles) into the 'profiles' folder.
Included in my server.cfg is :
// MISSIONS CYCLE (see below)
template = CO10_Suburban_Hell_140.United_States_H;
cadetmode = 1;