GTA Online · QUICK ANSWER
Which Bunker research upgrades should I prioritize?
After an unlock, prioritize equipment you will use: a compatible Heavy Barrel for long-range work; Heavy Sniper Mk II Thermal Scope for visibility; Explosive Rounds for specialist sniper or Pump Shotgun setups; then other ammo and equipment for vehicles you own. Liveries only change appearance.
This is a purchase priority, not a research order you can choose. The 51 projects unlock randomly. Grips and muzzle brakes for Combat MG Mk II and Special Carbine Mk II can already be bought without research.
Sources
- Prototype93D: all 51 Bunker research items (opens in a new tab)Original recording, 17 May 2020. Creator chapter inventory 00:04–13:35; weapon examples at 08:28–11:53 and cosmetic sets at 11:59–13:35. Current catalogue cross-check; not a current damage test.
- Bunker research project catalogue (opens in a new tab)Description and Upgrades: 51 projects, random order, purchase after unlocking. Cross-checked against the original chapter inventory. No timing, mission reward or fast-track cost claims.
- Heavy Sniper Mk II — components and access (opens in a new tab)Customization: conversion, 8-round regular extended clip versus 4-round special clips, scopes, brakes and research-gated Heavy Barrel. HUD bars and one-shot thresholds excluded.
- Combat MG Mk II — components and access (opens in a new tab)Customization: 200-round regular extended clip versus 80-round special clips, grip, direct-purchase muzzle brakes, research Heavy Barrel and conversion.
- Special Carbine Mk II — components and access (opens in a new tab)Customization: 60-round regular clip versus 20-round special clips, grip, brakes, direct-purchase Heavy Barrel and conversion. Do not generalize the Heavy Barrel research requirement to this later weapon.