MW2 Materials List
Credits to Hooker for his Full Material List.
Credits to me (TreyZ) for finding the Materials that you can use. :P

ac130_overlay_grain
specialty_carepackage
dpad_killstreak_carepackage
specialty_airdrop_emergency
dpad_killstreak_emergency_airdrop
specialty_airdrop_sentry_minigun
dpad_killstreak_sentry_airdrop
faction_128_arab
faction_128_militia
faction_128_rangers
faction_128_taskforce141
faction_128_usmc
faction_128_ussr
black
objpoint_default
compass_objpoint_ammo_friendly
compass_objpoint_ammo_enemy
damage_feedback
damage_feedback_j
damage_feedback_endgame
scavenger_pickup
progress_bar_bg
progress_bar_fill
specialty_painkiller
specialty_finalstand
specialty_copycat
specialty_uav
specialty_counter_uav
specialty_predator_missile
specialty_precision_airstrike
specialty_helicopter_support
specialty_helicopter_flares
specialty_stealth_bomber
specialty_cobra_gunner
specialty_ac130
specialty_emp
specialty_nuke
specialty_uav_crate
specialty_airdrop_sentry_minigun_crate
specialty_predator_missile_crate
specialty_harrier_strike_crate
specialty_helicopter_support_crate
specialty_stealth_bomber_crate
specialty_cobra_gunner_crate
specialty_ac130_crate
specialty_emp_crate
specialty_nuke_crate
crosshair_red
combathigh_overlay
rank_pvt1
rank_pfc1
rank_spc1
rank_cpl1
rank_sgt1
rank_ssgt1
rank_sfc1
rank_msgt1
rank_1stsgt1
rank_sgtmaj1
rank_cmdsgtmaj1
rank_1stlt1
rank_capt1
rank_maj1
rank_ltcol1
rank_col1
rank_bgen1
rank_majgen1
rank_ltgen1
rank_gen1
rank_comm1
rank_prestige1
rank_prestige2
rank_prestige3
rank_prestige5
rank_prestige6
rank_prestige7
rank_prestige8
rank_prestige9
rank_prestige10