You gain experience at the end of each mission.
After each mission you are awarded XP for your performance.
| Name | XP | Description |
|---|---|---|
| Objectives Complete | 1000 | XP split between objectives. |
| Enemies Killed | 100 | 1 XP per alien killed. |
| Completion Time | 100 | max points at speedrun time. |
| Friendly Fire Done | 100 | -1 XP per damage done. |
| Damage Taken | 100 | -1 XP per damage received. |
| Healing | 50 | +1 XP per 10 Health healed. |
| Fast Hacks | 50 | +25 XP per fast hack. |
You will also received 50 XP for each achievement. The following achievements are repeatable:
| Name | Description |
|---|---|
| Clear Firing | Complete a mission with no friendly fire incidents. Four marines must be present in the mission. |
| Short Controlled Bursts | Complete a mission with no friendly fire incidents. Four marines must be present in the mission. |
| Shield Down | Deliver the finishing blow to a Swarm Shieldbug. |
| Blast Radius | Kill 6 Swarm with a single Grenade. |
| Sharpshooter | Complete a mission with better than 90% accuracy. |
| Perfect | Kill at least 25 aliens on Normal difficulty or higher and finish the mission without taking any damage. |
| Scrambled Eggs | Destroy all Swarm Eggs in a mission without allowing any to hatch. |
| Bug Stomper | Kill 100 Swarm Grubs. |
| Parasite Puncher | Kill a Swarm Parasite with a melee attack. |
| Close Encounters | Kill 20 Swarm with melee attacks in a single mission. |
| Smoking Barrels | Kill 5 Swarm with explosive barrels in a single mission. |
| Infestation Savior | Cure an Infested marine. |
| Security Expert | Complete 10 computer hacks without access being logged. |
| Group Heal | Heal all 4 marines with a single Heal Beacon. |
| Damage Amped | Kill 15 Swarm with all four marines under the effects of a Damage Amp in a single mission. |
| Gunslinger | Successfully perform 5 fast reloads in a row. |
| Zero Mortality | Complete a mission on Normal difficulty or harder without any marines dying. |
| Electro-Stunned | Stun 6 Swarm with a single Stun Grenade. |
| Under the Gun | Roll under a Swarm Ranger projectile. |
| The Quick and the Dead | Kill a Swarm Boomer before it inflates. |
| Stay Frosty | Freeze 6 Swarm with a single Freeze Grenade. |
| Ammo Technician | Deploy 10 ammo stashes that are used by other marines. |
Finally, the mission difficulty modifies the total XP:
| Difficulty | XP Modifier |
|---|---|
| Easy | 50% |
| Normal | 100% |
| Hard | 120% |
| Insane | 140% |
| Brutal | 150% |
As you progress in level, you will unlock new equipment. Upon promotion, all unlocked equipment will be locked.
| Level | Experience from Previous | Total Experience | Unlocked Weapons |
|---|---|---|---|
| 1 | N/A | 0 | Starting Weapons* |
| 2 | 1000 | 1000 | L3A Tactical Heavy Armor |
| 3 | 1050 | 2050 | Model 35 Pump-action Shotgun |
| 4 | 1100 | 3150 | X-33 Damage Amplifier |
| 5 | 1150 | 4300 | IAF Tesla Cannon |
| 6 | 1200 | 5500 | Hornet Barrage |
| 7 | 1250 | 6750 | Precision Rail Rifle |
| 8 | 1300 | 8050 | CR-18 Freeze Grenades |
| 9 | 1350 | 9400 | IAF Medical Gun (Medic) |
| 10 | 1400 | 10800 | Adrenaline |
| 11 | 1450 | 12250 | K80 Personal Defense Weapon |
| 12 | 1500 | 13750 | IAF Tesla Sentry Coil |
| 13 | 1550 | 15300 | M868 Flamer Unit |
| 14 | 1600 | 16900 | v45 Electric Charged Armor |
| 15 | 1650 | 18550 | IAF Freeze Sentry Gun |
| 16 | 1700 | 20250 | M478 Proximity Incendiary Mines (Officer) |
| 17 | 1750 | 22000 | IAF Minigun (Special Weapons) |
| 18 | 1800 | 23800 | Flashlight Attachment |
| 19 | 1850 | 25650 | AVK-36 Marksman Rifle |
| 20 | 1900 | 27550 | IAF Power Fist Attachment |
| 21 | 1950 | 29500 | IAF Incendiary Sentry Gun |
| 22 | 2000 | 31500 | FG-01 Hand Grenades |
| 23 | 2050 | 33550 | Chainsaw |
| 24 | 2100 | 35650 | MNV34 Nightvision Goggles |
| 25 | 2150 | 37800 | IAF High Velocity Sentry Cannon |
| 26 | 2200 | 40000 | MTD6 Smart Bomb |
| 27 | 2250 | 42250 | Grenade Launcher |
| 28 | 2300 | 44550 | PS50 Bulldog |
| 29 | 2350 | 46900 | IAF HAS42 Devastator (Special Weapons) |
| 30 | 2400 | 49300 | 22A4-2 Combat Rifle |
| 31 | 2450 | 51750 | IAF Medical Amplifier Gun (Medic) |
| 32 | 2500 | 54250 | TG-05 Gas Grenades (Medic) |
| 33 | 2550 | 56800 | 22A5 Heavy Assault Rifle |
| 34 | 2600 | 59400 | IAF Medical SMG (Medic) |