[axelnieves2012]

You can strip weapons like that (using my functions and define's):
new weapons = pev(id, pev_weapons)
new primary = weapons&primary
new secondary = weapons&secondary

if (primary) fm_strip_user_gun( id, bits2id(primary) ) //strip primary weapon
if (secondary) fm_strip_user_gun( id, bits2id(secondary) ) //strip secondary weapon

do this on each player, AFTER round starts ;)