make backups of your original files


Using OpenIV :

"weaponInfo.xml" goes in \EFLC\TBoGT\common\data

weapon models are replaced in \EFLC\TBoGT\pc\models\cdimages\weapons_e2.img\

"gun@m249.wad goes in \EFLC\TBoGT\pc\anim\anim.img\             this is for a shoulder fired m249