Unlock higher ranks by earning more points and a higher ”Difference” score.

Captain – 1100 points, 300 difference, unlocks VC9 missile launcher
Colonel – 2300 points, 450 difference, unlocks saboteur badge
Corporal – 30 points, 30 difference, can create squad option
General – 2800 points, 500 difference, unlocks scout badge
Lieutenant – 880 points, 250 difference, unlocks engineer badge
Lieutenant-Colonel – 1850 points, 400 difference, unlocks grenade launcher
Major – 1450 points, 350 difference, unlocks tactician badge
Master Sergean – Master Sergeant: 350 points, 150 difference, unlocks the medic badge
Sergeant – 100 point, 70 difference, can create clan option
Sergeant 1st Class – 200 points, 100 difference, unlocks Shotgun and SMG
Sergeant Major – 550 points, 250 difference, unlocks HGH and ISA LMG

Aerial Supportive – 8x Air Support Specialist (Unlocks Combine Tactician 2nd Ability)
Army Superior Unit Award – 50x Clan Matches Won with Clan (Unlocks 100,000 Valor)
Assassins League – 5x Assassination Kill Specialist (Unlocks Increased Points/Assassination Kills)
Black Belt – 5x Close Combat Specialist (Unlocks Increased Points/Melle Kill)
Bodyguard Alliance – 5x Assassination Defend Specialist (Unlocks Increased Points per Survival)
Bomb Squad – 5x Search and Destroy Specialist (Unlocks Increased Points/Returns/Disarms)
Corpse Counters – 5x Body Count Specialist (Unlocks Increased Points/Defensive Kills)
Defense Initiative – 5x Capture and Hold Defend Specialist (Unlocks Increased Points/Defensive Kills)
Defensive Specialist – 8x Turret Specialist (Unlocks 2nd Engineer Ability)
Example Soldier – 8x Good Conduct (Unlocks Increased Start Ammo Amount)
Explosives Expert – 8x C4 Specialist (Unlocks Combine Saboteur 2nd Ability)
Field Mechanic – 8x Repair Specialist (Unlocks Combne Engineer 2nd Ability)
Field Medic – 8x Healing Specialist (Unlocks Combine Medic 2nd Ability)
Forward Observer – 8x Spot and Mark Specialist (Unlocks Combine Scout 2nd Ability)
Front Runner – 8x Boost Specialist (Unlocks Combine Assault 2nd Ability)
Hawk’s Eye – 5x Sniper Specialist (Unlocks Second Sniper Zoom)
Head Fetish – 5x Headshot Specialist (Unlocks Increased Points/Headshot)
Master of Disguise – 8x Disguise Specialist (Unlocks Saboteur Ability)
Meritorious Unit Award – 10x Clan Matches Won with Clan (Unlocks 1000 Valor)
Meritorious Unit Award – 25x Clan Matches Won with Clan (Unlocks 10,000 Valor)
Natural Born Killer – 8x Kill Count (Unlocks Increased Grenade Amount)
Quick Draw – 5x Sidearm Specialist (Unlocks M4 Revolver 2nd Weapon)
Retrieval Corps – 5x Search and Retrieve Specialist (Unlocks Increased Points/Return)
Shadow Marshall – 8x Cloak Specialist (Unlocks 2nd Scout Ability)
Spawn Authority – 8x Spawn Point Specialist (Unlocks 2nd Tactician Ability)
Trauma Surgeon – 8x Revival Specialist (Unlocks 2nd Medic Ability)

Air Support Specialist – 5 kiils by Air Support called
Assassination Defend Specialist – Stayed alive as Target
Assassination Kill Specialist – 1 Assassination Target killed
Body Count Specialist – 10 kills made during a mission
Boost Specialist – Peform 5 Boosts
C4 Specialist – 5 kills by placed C4 Explosives
Capture and Hold Defend Specialist – 10 mission points earned Capturing a Point
Cloak Specialist – Kill 5 enemies while Cloaked
Close Combat Specialist – 10 kills by Close Combat Melee
Disguise Specialist – Kill 5 enemies while Disguised
Good Conduct – 0 Team-Kills/Suicides are made by the player and they have scored at least 20 points
Headshot Specialist – 10 kills by Headshots
Healing Specialist – Heal 5 players
Repair Specialist – Repair 5 Objects
Revival Specialist – Successfully Revive 5 players
Search and Destroy Specialist – 2 Objectives placed/disarmed
Search and Retrieve Specialist – 2 Objectives returned
Sidearm Specialist – 10 kills by Pistols
Sniper Specialist – 10 kills by Sniper Rifle
Spawn Point Specialist – 5 players Spawn on Placed Area
Spot and Mark Specialist – Spot and Mark 5 players
Turret Specialist – 5 kills by Sentry Turret Placed

Babysitter (Bronze) – Revive your buddies a total of 25 times
Barrel of Death(Bronze) – Kill 3 Helghast at once using the surrounding environment
Berserker (Bronze) – Kill 25 Helghast using melee attacks
Blade Runner (Bronze) – Kill 75 Helghast using the knife
Blitzkrieg Ribbon(Bronze) – Win 50 online matches
Blood Ribbon(Bronze) – Complete Blood Meridian on any difficulty level
Bridge Ribbon(Bronze) – Complete Salamun Bridge on any difficulty level
Bullet Counter (Bronze) – Manually reload your weapon 150 times
Can Opener (Bronze) – Destroy any Helghast APC during battle
Career Ribbon(Gold) – Achieve an online rank of General
Corinth Ribbon(Bronze) – Complete Corinth River on any difficulty level
Cross-Training Ribbon(Bronze) – Acquire all badge specific medals
Cruiser Ribbon(Bronze) – Complete The Cruiser on any difficulty level
Defensive Fighter (Bronze) – Kill 30 Helghast using the StA3 fixed gun emplacement
Demonslayer (Bronze) – Kill Radec at Visari Palace within 20 minutes
Dragonslayer (Bronze) – Destroy the Salamun Bridge ATAC in under 1 minute 30 seconds
Elementalslayer (Bronze) – Kill the Tharsis Refinery ArcTrooper in under 1 minute 30 seconds
Expert Ribbon(Bronze) – Acquire all combat specific medals
Field Agent (Bronze) – Collect all intel within the game
Fragmartyr (Bronze) – Kill 2 Helghast at once and take your own life using a single frag grenade
Fragmerchant (Bronze) – Kill 5 Helghast at once using a single frag grenade
Giantslayer (Bronze) – Kill the Blood Meridian heavy in under 1 minute
Heroic Survivor(Gold) – Complete all missions on Elite difficulty level
Iconoclast (Bronze) – Destroy all Helghast symbols within the game
Killing Spree (Bronze) – Kill 5 Helghast in 15 seconds whilst on foot and maintaining at least 85% health
Maelstra Ribbon(Silver) – Complete Maelstra Barrens on any difficulty level
Master Conductor (Bronze) – Electrocute 3 Helghast with a single burst from the VC5 Electricity Gun
Mechspert (Bronze) – Stomp 10 Helghast with your Exoskeleton in Maelstra Barrens
Melonpopper (Bronze) – Get 15 headshots using the VC32 Sniper Rifle
Pallbearer (Bronze) – Kill 500 Helghast Soldiers
Professional (Bronze) – Get 3 headshots in a row using the same clip of M4 Revolver ammunition
Reaper (Bronze) – Kill 1500 Helghast Soldiers
Run and Gunner (Bronze) – Kill 3 Helghast using an M82 or StA52 assault rifle without releasing the trigger
Safari Hunter (Bronze) – Kill one of each enemy infantry type with a melee attack
Safety First (Bronze) – Shoot off 100 Helghast helmets during battle
Salamun Ribbon(Bronze) – Complete Salamun District on any difficulty level
Spare Parts (Bronze) – Destroy all Leech Pods in The Cruiser
Stick Around (Bronze) – Nail 20 Helghast to a wall using the Boltgun VC-21
Suljeva Ribbon(Bronze) – Complete Suljeva Village on any difficulty level
Survivor(Silver) – Complete all missions on any difficulty level
Tharsis Ribbon(Bronze) – Complete Tharsis Refinery on any difficulty level
Treadhead (Bronze) – Take 30 Helghast lives whilst using the ISA tank
Undertaker (Bronze) – Kill 1000 Helghast Soldiers
Untouchable(Silver) – Complete all missions on any difficulty level without dying
Valor Citation(Bronze) – Achieve weekly online honor rank #1
Valor Cross(Silver) – Achieve weekly online honor rank #3
Valor Grand Cross(Gold) – Achieve weekly online honor rank #4
Valor Medal(Bronze) – Achieve weekly online honor rank #2
Veteran Ribbon(Bronze) – Acquire all mission specific medals
Visari Ribbon(Bronze) – Complete Visari Square on any difficulty level
War Hero(Platinum) – Collect all Killzone®2 trophies
Wargod Ribbon(Bronze) – Acquire all remaining medals