Just to reinforce the above report, I've got a second demo here, uploaded to my old website:
http://su7th.webs.com/Demos/HTF_ac_sunse...0_11mr.dmo
EDIT: Added screenshot of his/her end score, when he/she disconnected:, uploaded to my old website too:
http://su7th.webs.com/Miscellaneous/2011...et_HTF.jpg
This seriously was ridiculous, and also note that he not only had a headshot hack (like Vanqu!sh explained above) but he used a speedhack too (note he moves way faster than normal). I'd recommend a 5-month Master Server blacklist entry for him/her.
http://su7th.webs.com/Demos/HTF_ac_sunse...0_11mr.dmo
EDIT: Added screenshot of his/her end score, when he/she disconnected:, uploaded to my old website too:
http://su7th.webs.com/Miscellaneous/2011...et_HTF.jpg
This seriously was ridiculous, and also note that he not only had a headshot hack (like Vanqu!sh explained above) but he used a speedhack too (note he moves way faster than normal). I'd recommend a 5-month Master Server blacklist entry for him/her.