A quick summary of every perk and its purpose
How to unlock Perk Slots
Perk slots don't have a level requirement, you will permanently unlock them for $10000 and $100000 respectively.
Click on the slot in the bottom right corner.
DCNT (Discount) Perk - Level 1
Reduces the price of your rented loadout by 50% after respawn.
AMMO (Ammunition) Perk - Level 1
Gives you twice the ammo for your primary and secondary weapon. See (https://wiki.armakoth.com/vanilla/weapons-attachments)
ENGR (Engineer) Perk - Level 1
Allows you to repair any friendly or empty vehicle on the battlefield to a working condition.
MEDC (Medic) Perk - Level 3
You receive five medkits instead of two and revive downed teammates twice as fast. Reviving and healing gives you bonus money and experience.
LNCR (Launcher) Perk - Level 5
Grants access to Anti-Tank, Anti-Air and Anti-Personnel launchers.
MRKS (Marksman) Perk - Level 7
Grants access to sniper rifles, DMRs, long range scopes and ghillie suits. Your binoculars are replaced by a rangefinder.
MGNR (Machinegunner) Perk - Level 9
Grants access to machineguns.
EXPL (Explosives) Perk - Level 11
Adds an underbarrel grenade launcher to your primary weapon if compatible - if combined with the AMMO perk you get additional underbarrel grenades.
Also doubles your handgrenades, smokegrenades and adds a satchel charge plus additional rockets for your launcher. See (https://wiki.armakoth.com/vanilla/weapons-attachments#launchers)
FTGE (Indefatigable) Perk - Level 13
Quicker stamina regeneration.
CSMR (Countermeasures) Perk - Level 15
Automatically deploy countermeasures in a vehicle if being fired upon by a lock-on missile. In ground vehicles you have to be in the commander seat.
DSNR (Designator) Perk - Level 18
Replaces your binoculars by a laser designator with built-in thermal and night vision.
SLCR (Silencer) Perk - Level 20
Adds a silencer to both your primary and secondary weapon if compatible.
BPOD (Bipod) Perk - Level 23
Adds a bipod to your primary weapon if compatible.