MW2 Xbox 360 Modding

I just got my xbox back after 5 years, and was wondering if there is any way to Mod it anymore (Mod Menus, Hacked lobbies, etc)

Thanks

without a jtag**

Nope, you will need a Jtag/RGH for doing that task. However, i would strongly recommend if you get one.
Learn how to use it at first. Because it would go lots of time in learning how it works if you are new to this.

Anyway, most cheating methods is patched for online. In most cases you need an Jtag/RGH.
Its easy to find a hacked lobby anyway in MW2. So why dont you find a host and just get what you want that way.

I am already 10th lvl 70
Just looking to mess around with people / things online as the game is sorta getting dull.
And where is the best place to learn how to use the jtag/rgh

You have many forums around with tutorials of what an JTAG/RGH is and what it can do.
Look in the Xbox section maybe here on MPGH, other forums:
WeMod
Team Xecuter
TheTechGame
XPGamesaves


Its many sources out there and ways to find information. But i would say its best to learn by doing aka just getting a JTAG/RGH.
Then just try installing everything and learning that way. Of course you need to be dedicated to do that.

However, if you are going to be online with a RGH. Then using mod menues etc.
I will just say, your RGH will be banned from Xbox Live. Then you cant get your JTAG/RGH online again before you buy a new kv(Key Vault).
Btw, maybe some of this dont make totally sense to you, but what im trying to say is that you maybe need a bunch of cash to do this.
Then its always that question, is it worth it?