What specificaly are all of the vidmaster achievements in halo 3?

Well, after bungie got annoyed by people asking, "can i has recon?" they decided to make the vidmaster achievements soo that they can get it, but they have to wait and work for it. the achievements are:

7 on 7: enter a social or ranked playlist with 7 EXP

Annual: beat the final mission on legendary with the iron skull turned on, and everyone in ghosts

Lightswitch: get to the rank of lieutenant in any ranked playlist

and

Brainpan: find all skulls on all mythic maps

The downside to the brainpan one is that you will have to wait until september, or around that time, to get it due to the final three maps are coming out with ODST, those maps are Heritic(a midship remake from halo2) longshore, and citidel.

Have fun getting them, because i sure did. : )

The vidmaster achievements are milestones to get recon. After completing all the challenges, you can get the recon armor perm after buying Halo3 :ODST

http://halo.wikia.com/wiki/List_of_Achievements_for_Halo_3

This is a full list.

vidmaster challenges in halo 3 ODST and halo 3

Halo 3 ODST
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-vidmaster challenge: classic - finish any level solo on legendary, on live, with no shous fired and no gernades thrown

-vidmaster challenge: deja vu - complete highway on 4-player lengendary LIVE co-op, with iron, and "no hog or scorpion"

-vidmaster challenge: endure - in firefight on any mission pass the 4th set on 4 player heroic LIVE co-op

halo 3
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-vidmaster challenge: annual - complete halo 3 on 4-player lengendary Live co-op,with iron, and everyone in ghosts

-vidmaster challenge: lightswitch - get to the rank of lieutenant in any playlist with the EXP progression system

-vidmaster challenge: 7 on 7 - enter into any playlist with 7 EXP on the seventh of the month

-vidmaster challenge: brainpan - find all hidden skulls on the mythic maps

i can help you with all except lightswitch, or 7 on 7

if you want my help then e-mail me at alexleach34@yahoo.com my gamertag is elidog