new bool:CheckUpgrade[MAXPLAYERS+1];

HookEvent("map_transition", map_transition, EventHookMode_Pre);
HookEvent("finale_win", map_transition, EventHookMode_Pre);
HookEvent("round_start", round_start);

public Action:map_transition(Handle:event, const String:name[], bool:dontBroadcast)
{
  for(new i=1; i<=MaxClients; i++)
  {
   if(!IsFakeClient(i) && IsClientInGame(i))
   {
    if(LaserCheck[i] == 1 || SilencerCheck[i] == 1)
    {
     CheckUpgrade[i] = true;
    }
   }
  }
}

public Action:round_start(Handle:event, const String:name[], bool:dontBroadcast)
{
  for(new i=1; i<=MaxClients; i++)
  {
   if (!IsFakeClient(i) && IsClientInGame(i) && IsPlayerAlive(i))
   {
    if (CheckUpgrade[i])
    {
     SetEntProp(client, Prop_Send, "m_upgradeBitVec", НУЖНОЕ ЗНАЧЕНИЕ, 4);
     SilencerCheck[client] = 1;
     LaserCheck[client] = 1;
    }
   }
  }
}

public OnClientPutInServer(client)
{
  if (IsFakeClient(client) || !client) return;
  if (MedicHandle[client])
  {
   SetEntProp(client, Prop_Send, "m_upgradeBitVec", НУЖНОЕ ЗНАЧЕНИЕ, 4);
   SilencerCheck[client] = 1;
   LaserCheck[client] = 1;
  }
}