Guys i got a irritating spike in soldier front. if i play sometimes my ping goes to 500 and then everybody freezes and 20 secs later its normal again and the whole process start again. how can i fix this!?!

Make sure Aeria is an exception in the windows firewall, and if it already is try a program like "Game Booster 3"

If you have vista, try downloading 'Vista Anti Lag' and run it.

http://s1062.photobucket.com/albums/t495/exnkelly/?action=view&current=vistaantilag_zps7b4daf98.png