[Champ]

Simple. Create a variable like

pawn Код:

new InOneHit[MAX_PLAYERS];

then when player join the match set variable value to 1.

pawn Код:

if(!strcmp(cmdtext, "/onehit", true)) 
{

InOneHit[playerid] = 1;
return 1;
}

then when players uses anyother command while in deathmatch. return it to an error

pawn Код:

if(InOneHit[playerid] == 1) return SendClientMessage(playerid,0xAA3333AA,"[ERROR]You cant use commands while in a Deathmatch");