Praetor suit point

Praetor suit points are a collectible item in Doom Eternal used to enhance the Praetor suit's capabilities, replacing the Praetor tokens found in Doom (2016). They usually take the form of round disks bearing the Doom Slayer's mark which are held by Night Sentinel spirits; one point is also awarded for each combat challenge completed during most levels. Points can be obtained after completing the Exultia level.

Upgrades
Praetor suit points can be spent in the Suit tab in the dossier.

Purchasing all perks in one category will tick off the "This One's My Favorite" milestone, and purchasing all perks in all categories will tick off the "They're ALL My Favorite" milestone. Purchasing the Thicker Skin, Regenerating Barrels and Explosive Piñatas perks will tick off the "Barrels o' Fun" milestone.

Barrel ammo
The Explosive Piñatas upgrade causes all barrels to drop 2 shells, 10 bullets, 15 cells, and 1 rocket, and the Regenerating Barrels upgrade causes barrels to respawn once, so with both upgrades you can gain 4 shells, 20 bullets, 30 cells, and 2 rockets from each barrel.