Fix the ping? :'(

[.Brain]

How i "fix the ping"?
And one thing is intresting when i play in Battlefield:
My ping is 60 in spawn, but then when i shoot ppl or somebody else shoots someone next to me, my ping goes to 600! This is really annoying. Then i must stop playing.

So please, can somebody help me?

[nightswift]

weird I don't have a same problem but u really should check if someone downloads something or check out firewall first

[war]

have you tried typing \cl_maxpackets 100,\rate 25000, snaps 40 in your console? Also try changing your game to a lower video quality. This site has some good info on tweaking... velocity.lunarpages.com/tweaks.html