0xE464A is (Bsendpacket) is this updates as of March 7 it is a byte value write it to 0 to stop packets and 1 to send packets. (Or right a boolean)
EDIT
its NOT client.dll + (Bsendpacket)
It is Engine.dll + (Bsendpacket)
EDIT 2
Example
mem.WriteBoolean((IntPtr)vars.baseEngine + vars.bsendpacket, false);
wait 120ms;
mem.WriteBoolean((IntPtr)vars.baseEngine + vars.bsendpacket, true);
wait 70ms;
^^THIS CODE will make you look like you are lagging hard but you will feel none of it.
Tip* Make sure you set send packet to true while shooting to prevent missing.