How to Beat Alarm Doors and Horde Management

Learn how to tackle Alarm Doors and manage enemy hordes in GTFO. This guide breaks down strategies for survival and objective completion in the challenging R1B1 expedition.

Alright, let's talk about those dreaded Alarm Doors and how to keep the horde from overwhelming you in GTFO. This section is all about surviving the chaos, especially in expeditions like R1B1 where managing enemy waves is key.

Objectives in R1B1: PID Search

Your main goal here is to find 12 Personnel IDs (PIDs). You don't need to explore every single zone, which is a nice bit of breathing room. The zones from 39 to 45 each have between 3 and 4 PIDs, giving you a total of 18 to find across them. You only need 12, so you can pick your battles.

Here are your main options for collecting those PIDs:

• Option 1: Zones 43, 44, and 45
  • Start with Zone 43. Be ready, because this one triggers a CLASS II ALARM. Grab the PIDs here.
  • You'll also find a Colored Key in Zone 43. Don't skip it if you plan on accessing Zones 39 and 40 later!
  • Next up is Zone 44, which is a CLASS III ALARM zone. More PIDs to collect.
  • Finally, head into Zone 45, another CLASS III ALARM zone. Snag the remaining PIDs you need from here.
• Option 2: Zones 41 and 42
  • These zones are a bit more straightforward, with no initial alarms triggered just by entering.
  • You'll need to collect PIDs in both Zone 41 and Zone 42.
  • Heads up: Both Zone 41 and Zone 42 have a Scout lurking inside. Keep an eye out!
• Option 3: Zones 39 and 40
  • To access these zones, you'll need that Colored Key you hopefully grabbed from Zone 43.
  • Collect PIDs in Zone 39.
  • Then move on to Zone 40 for more PIDs.
  • Big Warning: Zones 39 and 40 are packed with Giants and Big Shooters. This is where horde management really comes into play. Be prepared for a tough fight!

Once you've got your 12 PIDs, just head back to the start and extract. Easy peasy, right? Well, maybe not *easy*, but you get the idea.

Recommended Path:

For a slightly less intense experience, try this route: Start with Zone 43 (Class II Alarm), then move to Zone 44 (Class III Alarm), followed by Zone 41, then Zone 42, and finally Zone 39. This way, you can often skip the really tough Zone 45 (Class III Alarm) and still hit your 12 PID target.

Resource Management: Ammo, Meds, and Tools per Zone

Knowing where to find supplies can make or break your run. Here's a general breakdown:

As you can see, zones 39 through 45 are pretty well-stocked, especially compared to the starting zone (38). Plan your exploration around these richer zones if you're running low.

Enemy Types You'll Face

Get familiar with your foes:

• Striker
• Shooter
• Giant
• Big Shooter
• Scout

Knowing their behaviors is half the battle. Strikers and Shooters are your bread and butter enemies, but Giants and Big Shooters can quickly turn a manageable situation into a full-blown disaster if you're not careful. And don't forget the Scouts – their detection can trigger alarms and bring the whole horde down on you!