Once Human offers a wide array of weapons to destroy the evil creatures and enemies in the game, the MPS5 being one of them is a deadly SMG used for fast and medium to close combat. Having the best build MPS5 Primal Rage on the battlefield will guarantee you an insane damage and kill streak. MPS5 Primal Rage has a fire rate of 750 and a mag capacity of 30, making it an ideal SMG for shooting up enemies. In this guide, we will walk you through the best mods and calibrations required to make an insane Fast Gunner MPS5 Primal Rage build in Once Human.
Once Human: Fast Gunner MPS5 Primal Rage Build
The deadly MPS5 will be even more awesome by equipping certain mods, accessories, and calibrations. Selecting the ideal mod and accessories can be tricky, but worry not, we have got you covered. Let us have a look at all of them, one by one.
Fast Gunner MPS5 Primal Rage Build: Mods And Accessories

We recommend the ‘Shooting Blitz’ <Fast Gunner> mod out of all the Fast Gunner weapon mods. Using this mod will affect your weapon stats in the following way:
- Weapon Damage +6.4% for Tier 2
- Damage Against Elite Enemies +6% for Tier 3
- Status Damage Reduction +2.4% for Tier 4
- Crit Damage +20% for Tier 5
Also, the fast gunner duration will be boosted by 4 seconds and weapon damage will increase by 15%.
Pro Tip: In Fast Gunner mod, if you have 1 bullet left in your mag, the gun will consume 1% HP and the remaining ammo to resume firing while restoring HP with each enemy hit. Doing this will not kill you, as your HP cannot drop below 1 HP.
We recommend equipping the MPS5 Primal Rage with the following accessories:
Weapon Part | Attachment |
---|---|
Muzzle | Tactical Supressor |
Tactics | Tactical Laser Sight |
Magazine | Amended SMG Mag |
Ammo | Precision SMG AP Ammo |
Fast Gunner MPS5 Primal Rage Build: Best Calibration

The ‘Assault Style‘ calibration is recommended by us. Using this calibration will boost weapon stats, and they will look like this once calibrated:
- Attack: +20%
- Crit Rate: +8.3%
- Damage: 435
- Stability: 44
- Accuracy: 88
- Range: 88
- Reload Speed: 49
Fast Gunner MPS5 Primal Rage Build: Best Secondary & Melee Weapons

Secondary Weapon:
- AWS .338- Bingo: We recommend this sniper rifle along with the ‘Rapid Shot Style‘ calibration, for its high damage and range. The Bingo will return up to 45% Enemy Weakspot Damage bonus and an Attack +15%.
- DE.50- Wildfire: This is our alternate recommended secondary pistol which is very handy and effective for fast close quarter fights. We recommend you use the Vulnerability Amphilifier weapon mod. Doing this will give you a 25% Weapon Damage bonus along with Bulls Eye Vulnerability of +8%.
Melee Weapon:
We recommend the ‘Long Axe‘ as a melee weapon which gives a +20% weapon damage bonus in the Fortress Warfare effect which gets activated once every 10 seconds after a ‘Heavy Attack‘.
Fast Gunner MPS5 Primal Rage Build: Best Gear

Attaching our recommended mods with the gears will help enhance your overall build making you a beast on the battlefield.
Gear | Key Armor | Key Armor Mod | Stats Affected |
---|---|---|---|
Mask | Oasis Mask B.P. | Targeted Strike <Violent> | Crit Rate +10%, Crit DMG +25% |
Top | Lonewolf Jacket | Quick Comeback <Violent> | Crit DMG +15% (T2), DMG Elite Enemies +4.5% (T3), Head DMG Red +1.6% (T4), Weapon DMG +3.6% (T5) |
Helmet | Lonewolf Hat | Fateful Strike <Violent> | Crit Rate +10%, Crit DMG +30%, |
Pants | Lonewolf Pants | Deadshot <Violtent> | Crit DMG +15% (T2), DMG Elite Enemies +4.5% (T3), Head DMG Red +3.6% (T4), Weapon DMG +3.2% (T5) |
Gloves | Lonewolf Gloves | Tactics Amplifier <Violent> | Tactical Item DMG +20% |
Boots | Bastille Boots | Covered Advance <Violent> | If 0 DMG is absorbed then a reward of: +20% Melee, Weapon & Status DMG for 30 sec. |
Fast Gunner MPS5 Primal Rage Build: Best Deviant & Food Buff

Best Deviant:
We recommend using the ‘Lonewolf’s Whisper‘ combat deviant. Trigger the deviant by pressing the key ‘E‘ and it will automatically battle your opponents. This deviant is available for PvP and PvE. Boost weapon damage by 21.6%.
Best Food Buff:
‘Mixed Fried Hot Dog‘ is our recommended food buff in the food slot, due to its highly useful advantages like:
- Energy +100
- Increase DMG by 20% to your opponents affected by The Bulls Eye.
In the drinks slot, we recommend the ‘Stardust Raspberry Shaved Ice‘ that will increase the Continuous Debuff effect durations by 20%.
And that is all on Once Human Fast Gunner MPS5 Primal Rage SMG DPS Build: Best Mod, Accessories, Calibration & More. You should also checkout our guide on Once Human: Critical Pulse Power Surge Best Build