Follow the steps below and you're good to gooo:

Modio Download:
[ Register or Signin to view external links. ] ly/2PMqH

Modded Gamesave Download:
[ Register or Signin to view external links. ] ly/2PN1X

*(Replace the spaces with dots obviously.) Also, if either ask for a survey, which it shouldn't, just enter fake information and it'll let you through. If not though, just ask for another link and I'll gladly get it

This step is pretty straight-foward- Import your existing campaign save game from your xbox to your flash drive then plug it into your computer. Open up modio, find the original gamesave, delete it, then take the modded one and have it take its place. Rehash and resign (a good practice just in case), then close out of it. Plug it back into your xbox and follow the steps below:

How to activate these mods:
Resume Campaign
Press back
Then end the campaign
Then click Spec-Ops
Press B
Then invite your friends to the game and have fun


Spec-Ops mission's:
so_showers_gulag
so_snowrace1_cliffhanger
so_snowrace2_cliffhanger
so_takeover_estate
so_takeover_oilrig
so_ac130_co_hunted
so_assault_oilrig
so_bridge
so_chopper_invasion
so_crossing_so_bridge
so_defense_invasion
so_escape_airport
so_forest_contingency
so_ghillies
so_defuse_favela_escape
so_demo_so_bridge
so_download_arcadia
so_killspree_invasion
so_killspree_trainer
so_hidden_so_ghillies
so_intel_boneyard
so_juggernauts_favela
so_killspree_favela
so_rooftop_contingency
so_sabotage_cliffhanger

Campaign:
af_caves
af_chase
airport
arcadia
boneyard
cliffhanger
co_hunted
contingency
dc_whitehouse
dcburning
dcemp
ending
estate
favela
favela_escape
gulag
invasion
oilrig
roadkill

DPAD UP = Noclip
DPAD Right = Defaultweapon with 4 arms
DPAD Left = GODMODE
DPAD DOWN = Dropweapon
LB = Slowmotion, gravity
RB = Promod, superspeed