My warhawk rank dropped down from chief seargant to recruit

May be...

if someone could tell me how and why this happened it would be great

alot of Accounts stats are getting resetted if they think you were stat-padding. My you went into a stat padding room and didnt (or did) know. sorry

maybe because you were not playing it enough. I had a similar problem. I was like a chief seargant too, and then one day I went to play warhawk and i couldnt find any servers. So i had to make a new PSN account. not sure if that helped your problem. lol. try turning your online off for a couple days or hours. and then see if it is better. Also there is a lot of glitches and lag in warhawk so something like that could of screwed up your ranking. Also look at your stats and see how many points you have. If you have a bunch of teamkill points then someone hacked into your account and teamkilled everyone (people do that).

my psn account is cyclones3. add me. i used to have warhawk but i lost it somewhere in my house.