Map mortar weapon file is not loaded and nothing is parsed, so you see no effect and hear no sounds
to fix it :
in CG_LoadWeapons_f
change
BG_WeaponInWolfMP( i )
to
BG_WeaponInWolfMP( i ) || i == WP_MAPMORTAR
under
CG_LoadingString( " - weapons" );
( cg_main.c )
do the same
optionaly in cg_ents.c
change
// convert direction of travel into axis
if( cent->currentState.weapon == WP_MORTAR_SET ) {
to
// convert direction of travel into axis
if( cent->currentState.weapon == WP_MORTAR_SET || cent->currentState.weapon == WP_MAPMORTAR ) {
so if you add missile model it is angled correctly
after that modify mapmortar.weap to change data supplied, adding data from mortar_set file will be the easiest