My tuppence, for what it's worth:

Start a new petition, rewriting or using Rythmmastr's as a basis, so it is concise, is written as a "voice of the community", and doesn't need a tl;dr. Emphasise above all else *the lack of communication* from Treyarch.

Suggest the main issues are:

lack of communication regarding patches/anything

weapon rebalancing (same as other platforms)

killstreak lag shooting

the glitches that still remain (map glitches, damage glitch, etc)

"demotions" by hackers

Secondary issues:

unlock the new gamemodes that are already on the disc (Infection, Team Juggernaut, etc)

hardcore ricochet

spawning improvements

matchmaking improvements

Mention that we aren't asking for:

eliminating hacking (no way to prevent it)

DLC (can't be done)

Give the petition a catchy name, e.g.

Operation Modernise Wiifare 3

Operation Screw The Fricking Akimbos

(think of something better, lol)

Then write a concise press release (the length of a short blog post), summarising the petition and the origins and reasoning behind it (loyal returning customers being ignored, started by the community forums, contrast with the support on the other platforms, etc).

Get other people to look it over (& the petition's text too) once it's done, to suggest improvements, correct errors, etc, before you start to submit it. (If you want it to be the voice of the community, it should be). If you can, get someone who has submitted press releases successfully to give it a look over. More info here: http://www.ereleases.com/howtosubmit.html (also see the linked articles further down that page)

If you can do a video, or someone else can, also link it in the press release.

Do translations of the press release for non-english media (e.g. ask .lamb nicely to do a german translation for the german-speaking media).

Then submit it to as many news sites and gaming blogs as you can, and post it to gaming forums too (as long as it won't count as spam).

As well as the big gaming news sites and blogs (IGN, Kotaku, Destructoid, etc), don't forget the smaller Nintendo-focused sites and blogs (Nintendo Life, Nintendo Lee, Nintendo World Report, etc), and any CoD-focused sites you can think of. Keep a list, so that you don't spam the same people, and so other sites can be suggested.

Having some Wii or CoD Youtube commentators/"personalities" on-board would help too, try contacting some.