[FMB] mission creation question

ive been making missions and saving them specifically for multiplayer.

but the missions i make are adopting the file names of the missions already in the folders. for e.g i have 12 missions called RED v BLUE - carrier wars.mis etc etc.

where am i going wrong. ive managed to get one titled correctly. and it shows .mis in the title. not a clue why it works.

so where are the instructions or relevant material explaining what the hell is going on please ?

i can only identify my missions through what time its set at. and to inform that the mission i have created work ok excepet kills dont tally on the net stats indicator. please enlighten me. thanks. over 10 hours wasted on that just because theres no documentation. and why no documentation ?