For some reason I start with world at wars mk2 frags the second the game starts, Ive edited the stalehandgrenate weapon file to the black ops 1 frags but I for some reason start with mk frags the second the game starts even though you shouldnt have any grenades until the round 1 goes to the bottom left corner of the screen

According to developer comments, at the game starts nades are given then taken away because of some weird coding thing before they are given each round.

My guess is that you changed the weapon file to give the player (the nades), but didn't change the weapon file that is taken from the player (old nades). Therefore, the player would have the nades from the very start of the game.