Okay, here's what to do:
1. If your mission is to make someone's class a rank of 3(Basically, make it worse), change the number at the end of whatever class they completed to a 3, press commit, and you're done.
2. If you have to upgrade their class level to 1, do the same as above, but put a 1 in instead of a 3 and select commit.
3. If you have to give them a first class degree, put in any degree into the middle text box(I always use Physics, easy to remember) with a capital letter first just to be safe(ie not physics, but Physics), put a comma, press space, put Class(Also capitalized), press space, and put a 1. Then, select commit. If you go back to that person's record, I believe it is changed back, but you'll still get credit. Just click reply and send, and it should work.
4. And for extra qualifications such as Registered Uplink Agent, just enter that, just as it appears in the email, into the bottom text box and select commit.
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(url="http://"http://halo.bungie.org/Halo_TotalAudio.mp3")Halo Theme Song(/url)
(url="http://"http://www.bungie.net/perlbin/blam.pl?file=/site/1")Official Halo Homepage(/url)
(url="http://"http://halo.bungie.org/misc/halo2trailermirrors.html")Halo 2 Trailer(/url)
Xbox-$200. Halo for your Xbox-$30. Watching a Warthog be blown hundreds of feet into the air with a few dozen grenades -Priceless. There are some Covenant you can kill with an Assault Rifle, for everything else, there's the Scorpion.