cl_maxpackets allow the game to send up to 125 packages per second, this will allow the game to send out packages basically un-throttled this lowers the ping shown in-game and increases the hit registration. This should either be 1:1, 2:1 or 1:2 with your FPS ,
Set cl_packetdup higher when your connection has packet loss, 1 means every packet is sent twice, 2 means every packet is sent thrice and so on… The default value is 2. This only increases hit reg on bad / unreliable connections.
rate 128000 means that you allow the game to receive up to 128kbit/s (16kB/s) from the server, which once again improves the hit reg.
seta com_maxfps "250" seta cl_maxpackets "125" seta cl_packetdup "1" seta rate "128000" seta com_maxfps "200" seta cl_maxpackets "100" seta cl_packetdup "1" seta rate "128000" seta com_maxfps "100" seta cl_maxpackets "100" seta cl_packetdup "1" seta rate "128000"