The suit costs 35,000 Credits and the schematic for the suit can be found in Chapter 7, in the same room where you find the SOS beacon.

The glow collects to make a fourth, vertical line.

In the original game, even though it is the Level 4 RIG, it still has three eye slits.

Additionally, the eye slits are narrower to protect against flying debris or other accidents that could occur during the mining process. Visually, the suit has a bulkier appearance due to the extensive attachments of armor platings and is more heavily armored compared to the Intermediate Engineer RIG. However, for completionists, it might just be the perfect reward.The Intermediate Miner RIG is an exclusive Resource Integration Gear available for Class 2 miners and is a standard equipment when working in hostile environments or during a hazardous mining operation. To some, it might not be worth the trouble of playing Impossible mode. The Burnished Suit has a unique colorway, sporting a mostly jet black design with a red visor. You can access it through your first playthrough’s save slot or on a New Game Plus save if you decide to go that route.

If you actually manage to complete this herculean task and defeat the Dead Space Remake on Impossible mode, then the Burnished Suit will appear in your inventory. This means that if you die, you will have to start the entire game over again. Impossible mode doesn’t allow for autosaves and you only get one save slot. This is the hardest difficulty setting in the entire game, and it will likely add hours to your playthrough compared to a normal difficulty level. The only way to acquire the Burnished Suit is to beat the Dead Space Remake on the Impossible difficulty level. Getting the Burnished Suit in Dead Space Remake Provided by EA

Unfortunately, players won’t even be able to get it until they attempt a second playthrough or go back to their first playthrough after they’ve beaten the story. The Burnished Suit is perhaps the toughest suit to acquire in the Dead Space Remake.

Dead space remake level 2 suit