I need help getting some achievements on Halo 3!?

[jim caesar]

I am having a LOT of trouble getting these acheivements, any tips would be appreciated.

Sword Triple Kill
Quadruple kill
2 for 1 (spartan laser)
Headshot Honcho (ten headshots)
All the campaign scoring achievements ( what skulls should I use?)
Board an enemy vehicle ten seconds after you have been boarded
and I think thats about it.... please help!

 

[flyingwithwings]

YO whatsup man.. i know this isnt a DIRECT answer.. but check out planethalo3x.com .. go to their forum and ask ur question. i swear to god that admin knows everything there is to know about halo 3 lol.. trust me hope this helps