So this build is pretty simple but I'll also explain some (needless) stuffs for u anyways
so as the name suggests, we're gonna be focusing on damage and speed rather than health and armor like a good ol' deathmatch style gameplay
Lets get right into it
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First of all, weapons and perk decks u'll need

For Primary: GL40 Grenade Launcher
For Secondary: Arbiter Grenade Launcher OR China Puff 40MM Grenade Launcher (its up to u but i prefer the Arbiter better due to it's faster firerate and yes it feels more like quake)
For Melee: Kazaguruma
For Throwable: Javelin (but u can equip anything u like tbh)
Perk Deck: Sociopath
Armor: Lightweight Ballistic Vest (for balanced amount of speed and armor)
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Skills

MASTERMIND:
Medic: Combat Medic (Basic), Quick Fix (Ace), Combat Doctor (Ace), Inspire (Ace)
Controller: Forced Friendship (Basic)
Sharpshooter: Stable Shot (Basic), Rifleman (Basic)

ENFORCER:
Shotgunner: Underdog (Basic)
Tank: Resilience (Basic), Die Hard (Basic), Bullseye (Ace)
Ammo Specialist: Scavenger (Ace)

TECHNICIAN:
Breacher: Hardware Expert (Ace), Drill Sawgent (Ace), Kickstarter (Ace)
Oppressor: Steady Grip (Basic), Fire Control (Basic), Lock N' Load (Basic)

GHOST:
Artful Dodger: Duck and Cover (Basic), Parkour (Ace)
Silent Killer: Second Wind (Basic)

FUGITIVE:
Revenant: Nine Lives (Ace)
Brawler: Martial Arts (Basic), Bloodthirst (Ace), Pumping Iron (Ace), Berserker (Ace), Frenzy (Ace)
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So this build is mostly based around wiping out groups of enemies in a short time and also getting flexible kills

I decided to use grenade launcher because they can wipe out tons of enemies at once and they're also explosive (obviously) which is how Quake is either way

But what's the point of using melee tho, well it's for when u ran out of ammo or most of the time u wanna take out those annoying dozers.
So this is all I've got to say and yes even tho this build is stupid it's also surprisingly effective on Overkill difficulty or below tho (just don't go above Overkill or you'll be screwed)

Thank you for reading this guide