Arc Flex Rubber is one of the first materials you'll need to donate to the High-Gain Antenna project in Arc Raiders' Flashpoint update, but that doesn't mean it's simple to collect. It's got only a few limited sources, though the new Close Scrutiny map condition does give you an advantage, providing you've got the gear and know-how to take it on.

I'll round up all the sources of Arc Flex Rubber below so you can finish the first stage of your project and move on to the next. I'm sorry to say that it only gets harder from here, as you'll need Vaporizer Regulators and Assessor Matrix.

How to get Arc Flex Rubber in Arc Raiders

You can get Arc Flex Rubber as a rare drop from looting the following Arc machines:

• Tick
• Sentinel
• Leaper
• Bastion
• Bombardier
• Queen
• Matriarch
• Baron Husks (these are the large wreckages)

As you can see, these are generally high-tier enemies that'll put up quite a fight, but they're easy enough to find. For example, Leapers often spawn near Water Treatment Control and Research & Administration on Dam Battlegrounds, while Bastions tend to spawn at Raider's Refuge, Ancient Fort, and Traffic Tunnels on Blue Gate, or the Loading Bay in Stella Montis.

However, the new Close Scrutiny map condition is also a very good option. Close Scrutiny increases the quality and quantity of Arc loot, and there are heaps of it inside the Assessors that spawn periodically throughout the match. If you've got the gear to compete in such a difficult map modifier, you can quickly earn all the Arc Flex Rubber you need, as I did.

You'll also get plenty of Arc Alloy, Arc Performance Steel, and Advanced Arc Powercells which are required for the first stage of the project. It's also the best way to move ahead with the later stages of the High Gain Antenna project, too, where you'll need Arc Coolant, Arc Thermo Lining, Arc Synthetic Resin, Surveyor Vaults, Vaporizer Regulators, and Assessor Matrixes. In other words, it can be your go-to for this project, so long as you're geared up.