[Weirdosport]

So what's the problem? You don't know how? You do it the same as you save all your other variables.

dUserSetINT(PlayerName(playerid)).("bomb",HaveBomb[playerid]);

That will save the HaveBomb value for the playerid to his file when he disconnected.

EDIT: to get the variable back:

HaveBomb[playerid] = dUserINT(PlayerName(playerid)).("bomb");