Spina's HPacks

Health Packs are a mid game instant healing item heavily inspired by Deadspace thats pretty much all you need to know
(Plays extremely well with other mods that make the game brutal like Scape N Run)

Basic Health Pack Stats          

Health Packs restore 3 hearts apon use
Extinguishes fire on user
However it also accelerates hunger decay temporarily

Health Packs can be swiftly used from outside of your inventory using a keybind

This keybind is called Quick Health Pack Use and the default bind is G and is found in the Misc section

Health Packs dont have their own creative tabs like other mods instead Health Packs are found in the combat tab

Health Packs in survival have 2 basic components to be crafted:

Medical Grade Injectable Canister (Item on right)
Gold Gel (Item on left)

Gold Gel's Crafting Recipe

The Medical Grade Injectable Canister's Crafting Recipe

And finaly the health pack itself

(Also when getting a health pack for the first time you will get a achievement thats a refrence to Deadspace)

(I have not tested this mod on a server however it should work just fine)

(I also recomend playing with JEI since theres no way to get the recipe in game for any items)