The Argent Cells in Doom will let you upgrade your armor, max HP and your how much ammo you can hold. Finding all these will be the key to surviving on the games more intense difficulties. Check out this Doom Argent Cell Location Guide to help you find all of them as you play the game!
Doom Argent Cell Location Guide
Shortly after you begin the Argent Energy Tower level you find some boots that let you double jump. You need to head to the far end of the main room and jump up some ledges to reach a secret. The image above is the platform you need to reach, the secret is just to the right in a small area you can drop into.
There’s another cell on this mission. Towards the end of the Argent Energy Tower mission you’ll reach a room with a large red beam coming down the middle. There’s a big fight here with some new enemies. Once you finish them off you have to go through a door to use a computer to progress. Before you use the computer walk past it and down the hall to find another Argent Cell.
The second cell is a little later in the level, after you go through the first airlock. After you clear the area outside the airlock and remove the blue field, jump the gap to the other side like you are going to progress. Look down and to the left to see a path going up a way. Jump down to that path and follow it to the cell.