Do the following tasks to unlock the following achievements and their alloted gamerscore.
Basic Training (5) Achieve the rank of Private 1st Class
Best of the Best (40) Achieve the rank of Elite
Bomb Expert (15) Defuse the bomb within 2 minutes in Attack & Defend
Coop Hunt Novice (10) Complete a Cooperative T-Hunt mission with at least one other player.
Coop Story Novice (10) Complete a Cooperative Story mission with at least one other player
Dam Buster (30) Completed Nevada Dam in single player Story Mode
Demolition Expert (20) Kill 50 players using Explosives only
Elite Hunter (75) Complete all maps in splitscreen T-Hunt at Realistic difficulty
Equipment Specialist (20) Used all Gadgets at least once in single player Story
Executioner (30) Kill 500 terrorists online or offline
Hazmat Specialist (15) Deposit the canister and kill an enemy canister carrier in the same Retrieval match
Hell Hound (30) Completed Dante's Casino in single player Story Mode
High Climber (30) Completed Vertigo Spire in single player Story Mode
High Roller (30) Completed Calypso Casino in single player Story Mode
Hostage Rescue (15) Rescue all hostages in an Attack & Defend mission in under 5 minutes
Infiltration Specialist (15) Recover the Intel in Attack & Defend within 2 minutes
Killer's Rampage (30) 10 consecutive player kills without dying
Killer's Spree (20) 5 consecutive player kills without dying
Lone Wolf (15) Most kills in a ranked online Sharpshooter match
Marksman (10) 100 total player kills in any adversarial mode
Master of Ceremonies (15) Host a 16-player match
Officer (20) Achieve the rank of Lieutenant 2nd Class
Pistoleer (25) Kill 150 terrorists using only a Pistol
Rainbow Six Legend (100) Complete the single player Story Mode at Realistic difficulty
Siege Specialist (15) Leading contributor of kills for the Defenders in a winning Attack & Defend ranked match
Sniper (15) 10 kills using a Sniper rifle in an online ranked match
Special Operations (50) Play all maps of every Adversarial game mode
Street Cleaner (30) Completed Downtown Vegas in single player Story Mode
Survivor (15) Be the only remaining player in a ranked online match of Survival
Team Champion (15) Most kills in a winning online ranked match of Team Sharpshooter
Team Survivalist (15) Most kills in a winning online ranked match of Team Survival
Tough Hombre (30) Completed Border Town in single player Story Mode
Tour of Duty (60) Cooperatively complete all Terrorist Hunt missions
True Identity (30) Used the Xbox Live Vision to create a character with your appearance
Vegas Champion (50) Cooperatively complete the Story Mode
Veteran Hunter (50) Complete all maps of splitscreen Terrorist Hunt on Normal difficulty
On Fremont Street (single-player) locate the Kapone casino entrance. While facing the entrance, look to the player's left and there will be a black AXE Men's Body Spray bottle sitting on a planter. Shooting it once will let you see test footage for R6 Vegas
On the 2 casino levels: Calypso Casino and Dante's Casino, if you look at some of the arcade machines that there are some Tom Clancy's Splinter Cell: Chaos Theory systems. Just a little Easter Egg the developers felt like putting in.
After destroying the opposition in single player campaign, don't forget to pick-up each new weapon you come across. While you don't have to keep a weapon and finish a map to unlock it in your customization menu, you do need to hold onto it briefly or your profile will not save it.
Another advantage is once you "claim" the weapon, you can die or restart the mission entirely and use it in the stage you got it from. This way, all the enemies you drop pretty much restock that weapon's ammo and you literally will be carrying a portable ammo dump throughout that stage.
Note: you need to reload your gamertag's last checkpoint each time you boot the game to get your gear back. If you choose to load a stage without loading your last checkpoint, your previously earned weapons will be lost.
in the casino vault one of the spawn spots there is a place that u can float on. go to the box on the wall there should be a pipe beside it lean on the wall and walk towards the pipe you should go up as soon as you get to the pipe this spot is very good for killing spawn killers.
All the ranks and unlockable items.
And they're all in ORDER. From highest to lowest rank.
Elite (675000 experience points): Camo 5 (Custom 1, Custom 2, Custom 3)
Colonel (535000 experience points): Headgears 5 (Ballistic Face Mask, Riot Helm, Night Vision Goggles)
Lt. Colonel (425000 experience points): Camo 4 (Yellow Urban, Red Urban, Tiger, Rust, Urban 2, Grey)
Major (330000 experience points): Military Armor (Viper Recon Armor, Diamondback Combat Armor and Anaconda Assault Armor)
Captain (264000 experience points): Mercenary Weapons (MG36, SPAS12, Desert eagle)
1st Lieutenant (214000 experience points): Headgears 4 (Half-Face Mask, Reinforced Helm, Tactical Goggles)
2nd Lieutenant (172000 experience points): Camo 3 (Pink, Blue, Woodland, Wasp, Sand, Crimson)
Corporal (14500 experience points): Camo 1 (Desert, Urban, Russian, Guerrilla, Fall, Desert 2)
Sergeant Major (139000 experience points): Black Market Armor (Typhoon Recon Armor, Cyclone Combat Armor, Hurricane Assault Armor)
First Sergeant (109500 experience points): Headgears 3 (Bonnie Hat, Beret, Tinted Goggles)
Master Sergeant (82500 experience points): Freedom Fighter weapons (AK47, Raging Bull, SV98)
Sergeant First Class (56500 experience points): Camo 2 (Flecktarn, Orange, Swedish, War2k5, Alpen, White)
Staff Sergeant (38500 experience points): Headgears 2 (3 Hole Balaclava, Baseball Cap, Breathing Mask)
Sergeant (23500 experience points): Tactical Armor (Raven Recon Armor, Vulture Combat Armor and Falcon Assault Armor)
Specialist (8400 experience points): Rainbow Weapons (MP7A1, SIG552 and USP40)
Private 1st Class (3000 experience points): Headgears 1 (Tactical Helm, Balaclava)
In the Fermont Street area,you'll find a bottle of Axe on a ledge. Shoot it,and you'll unlock the Rainbow Six Vegas Bloopers Reel.
X, B, X, B, Left Thumbstick, Left Thumbstick, Y, A, Y, A, Right Thumbstick, Right Thumbstick -Third person view
B, X, A, Y, Left Thumbstick, Y, A, X, B, Right Thumbstick -All characters have big head
Left Thumbstick, Right Thumbstick, Left Thumbstick, Right Thumbstick, A, B, Left Thumbstick, Right Thumbstick, Left Thumbstick, Right Thumbstick, X, Y -Characters are kill we only one shot.
Left Thumbstick, Left Thumbstick, A, Right Thumbstick, Right Thumbstick, B, Left Thumbstick, Left Thumbstick, X, Right Thumbstick, Right Thumbstick, Y -Change bullet tracers color
A, A, B, B, X, X, Y, Y, A, B, X, Y -Increase ragdoll strength
Not all cheats work online, but some do.
Now people are getting annoyed about people shooting at them through the wall but this cheat is to tell you how to do this.
First lean against any wall that is right next to were you want to shoot through. Now aim your fire just after the item or thing that you want to shoot through, then shoot now if it hits the corner than move it over a bit or if you see nothing it has worked.