Actually gets the HI name right

code/datums/supplypacks/robotics.dm

@@ -69,7 +69,7 @@
 	access = access_robotics
 
 /datum/supply_packs/robotics/robolimbs/hephaestus
-	name = "Hephaistos robolimb blueprints"
+	name = "Hephaestus robolimb blueprints"
 	contains = list(/obj/item/weapon/disk/limb/hephaestus)
 	cost = 35
 	containertype = /obj/structure/closet/crate/secure/science

code/modules/examine/descriptions/smokeables.dm

@@ -11,7 +11,7 @@
 	description_fluff = "Lucky Stars were created on Venus by a researcher seeking to make a good quality cigarette from pod-based tobacco plants.  The researcher only managed to make these, but made quite a profit off of them when she started her company."
 
 /obj/item/weapon/storage/fancy/cigarettes/jerichos
-	description_fluff = "Hephaistos Industries ex-military employees once decided to make a cigarette that was easy to light and had a waterproof case, specifically tailored for soldiers.  They created Jerichos.  Jerichos are known for their Hickory smoke and warm feeling in your lungs.  They are loved by soldiers and people employed in para-military outfits."
+	description_fluff = "Hephaestus Industries ex-military employees once decided to make a cigarette that was easy to light and had a waterproof case, specifically tailored for soldiers.  They created Jerichos.  Jerichos are known for their Hickory smoke and warm feeling in your lungs.  They are loved by soldiers and people employed in para-military outfits."
 
 /obj/item/weapon/storage/fancy/cigarettes/menthols
 	description_fluff = "The Temperamento Menthol Company is a large cigarette company based in Mars.  They have been around since the very dawn of Human colonization and have remained a favorite for those seeking a more.. numbing cigarette.<br>\

code/modules/organs/robolimbs.dm

@@ -77,7 +77,7 @@ var/const/standard_monitor_styles = "blank=ipc_blank;\
 	unavailable_to_build = 1
 
 /datum/robolimb/hephaestus_alt1
-	company = "Hephaistos - Frontier"
+	company = "Hephaestus - Frontier"
 	desc = "A rugged prosthetic head featuring the standard Hephaestus theme, a visor and an external display."
 	icon = 'icons/mob/human_races/cyberlimbs/hephaestus/hephaestus_alt1.dmi'
 	unavailable_to_build = 1
@@ -90,7 +90,7 @@ var/const/standard_monitor_styles = "blank=ipc_blank;\
 		rgb=hephaestus_alt_rgb;\
 		rainbow=hephaestus_alt_rainbow"
 
-/datum/robolimb/hephaistos_monitor
+/datum/robolimb/hephaestus_monitor
 	company = "Hephaestus Monitor"
 	desc = "Hephaestus' unique spin on a popular prosthetic head model. It looks rugged and sturdy."
 	icon = 'icons/mob/human_races/cyberlimbs/hephaestus/hephaestus_monitor.dmi'

code/modules/projectiles/guns/projectile/automatic.dm

@@ -301,7 +301,7 @@
 
 /obj/item/weapon/gun/projectile/automatic/p90
 	name = "personal defense weapon"
-	desc = "The H90K is a compact, high capacity submachine gun produced by Hephaistos Industries. Despite its fierce reputation, it still manages to feel like a toy. Uses 9mm rounds."
+	desc = "The H90K is a compact, high capacity submachine gun produced by Hephaestus Industries. Despite its fierce reputation, it still manages to feel like a toy. Uses 9mm rounds."
 	icon_state = "p90smg"
 	item_state = "p90"
 	w_class = ITEMSIZE_NORMAL

html/changelogs/Anewbe - HI NAMING FOR REAL.yml

@@ -0,0 +1,36 @@
+################################
+# Example Changelog File
+#
+# Note: This file, and files beginning with ".", and files that don't end in ".yml" will not be read. If you change this file, you will look really dumb.
+#
+# Your changelog will be merged with a master changelog. (New stuff added only, and only on the date entry for the day it was merged.)
+# When it is, any changes listed below will disappear.
+#
+# Valid Prefixes: 
+#   bugfix
+#   wip (For works in progress)
+#   tweak
+#   soundadd
+#   sounddel
+#   rscadd (general adding of nice things)
+#   rscdel (general deleting of nice things)
+#   imageadd
+#   imagedel
+#   maptweak
+#   spellcheck (typo fixes)
+#   experiment
+#################################
+
+# Your name.  
+author: Anewbe
+
+# Optional: Remove this file after generating master changelog.  Useful for PR changelogs that won't get used again.
+delete-after: True
+
+# Any changes you've made.  See valid prefix list above.
+# INDENT WITH TWO SPACES.  NOT TABS.  SPACES.
+# SCREW THIS UP AND IT WON'T WORK.
+# Also, all entries are changed into a single [] after a master changelog generation. Just remove the brackets when you add new entries.
+# Please surround your changes in  double quotes ("), as certain characters otherwise screws up compiling. The quotes will not show up in the changelog.
+changes: 
+  - spellcheck: "Disregard the last changelog on the spelling of HI, the correct spelling is Hephaestus. My bad."