diff --git a/html/changelogs/furrycactus - airlock acess fixes.yml b/html/changelogs/furrycactus - airlock acess fixes.yml
new file mode 100644
index 00000000000..51feff4e67a
--- /dev/null
+++ b/html/changelogs/furrycactus - airlock acess fixes.yml	
@@ -0,0 +1,44 @@
+################################
+# 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
+#   balance
+#   admin
+#   backend
+#   security
+#   refactor
+#################################
+
+# Your name.
+author: Furrycactus
+
+# 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:
+  - maptweak: "Fixes the maintenance access requirements on two of the airlocks just north of ammunition storage."
+  - maptweak: "Fixes an alert access marker on the right-side bridge doors."
+  - maptweak: "Fixes the missing Phoron from the Machinist Workshop."
+  - maptweak: "Removes some metal sheets and welding fuel accidentally left in a window."
diff --git a/maps/sccv_horizon/sccv_horizon-2_deck_2.dmm b/maps/sccv_horizon/sccv_horizon-2_deck_2.dmm
index a8a0f8a1ae0..b72e33df725 100644
--- a/maps/sccv_horizon/sccv_horizon-2_deck_2.dmm
+++ b/maps/sccv_horizon/sccv_horizon-2_deck_2.dmm
@@ -9974,8 +9974,7 @@
 /obj/machinery/door/firedoor,
 /obj/machinery/door/airlock/maintenance{
 	dir = 1;
-	name = "Operations Maintenance";
-	req_one_access = list(26,29,31,48,67)
+	req_one_access = list(12)
 	},
 /turf/simulated/floor/tiled/full,
 /area/maintenance/wing/starboard)
@@ -10425,6 +10424,9 @@
 	},
 /obj/structure/closet/crate,
 /obj/effect/floor_decal/industrial/outline/yellow,
+/obj/item/stack/material/phoron{
+	amount = 20
+	},
 /turf/simulated/floor/tiled/dark/full,
 /area/operations/lower/machinist)
 "eTf" = (
@@ -44832,8 +44834,7 @@
 	},
 /obj/machinery/door/airlock/maintenance{
 	dir = 4;
-	name = "Operations Maintenance";
-	req_one_access = list(26,29,31,48,67)
+	req_one_access = list(12)
 	},
 /turf/simulated/floor/tiled/full,
 /area/maintenance/wing/starboard)
@@ -49790,41 +49791,9 @@
 	id = "RnDShutters";
 	name = "RnD Shutters"
 	},
-/obj/item/stack/material/glass{
-	amount = 50;
-	pixel_x = -1;
-	pixel_y = 2;
-	randpixel = 0
-	},
-/obj/item/stack/material/steel{
-	amount = 50;
-	pixel_x = 1;
-	pixel_y = -2;
-	randpixel = 0
-	},
-/obj/item/stack/material/steel{
-	amount = 50;
-	pixel_x = 1;
-	pixel_y = -2;
-	randpixel = 0
-	},
-/obj/item/stack/material/steel{
-	amount = 50;
-	pixel_x = 1;
-	pixel_y = -2;
-	randpixel = 0
-	},
-/obj/item/device/paint_sprayer,
-/obj/item/reagent_containers/weldpack,
 /obj/effect/floor_decal/corner/black{
 	dir = 10
 	},
-/obj/effect/floor_decal/industrial/outline/yellow,
-/obj/machinery/ringer/south{
-	department = "Machinist Workshop";
-	id = "robo_ringer";
-	req_access = list(29)
-	},
 /obj/machinery/camera/network/supply{
 	c_tag = "Operations -  Machinist Workshop Starboard 3";
 	dir = 1
diff --git a/maps/sccv_horizon/sccv_horizon-3_deck_3.dmm b/maps/sccv_horizon/sccv_horizon-3_deck_3.dmm
index 994eaeacf37..ac8d9aead03 100644
--- a/maps/sccv_horizon/sccv_horizon-3_deck_3.dmm
+++ b/maps/sccv_horizon/sccv_horizon-3_deck_3.dmm
@@ -20380,13 +20380,16 @@
 /obj/structure/disposalpipe/segment,
 /obj/machinery/atmospherics/pipe/simple/hidden/scrubbers,
 /obj/machinery/atmospherics/pipe/simple/hidden/supply,
-/obj/effect/map_effect/door_helper/level_access/command_foyer,
 /obj/machinery/door/airlock/glass_command{
 	dir = 1;
 	id_tag = "command_foyer";
 	name = "Bridge";
 	req_one_access = list(19,38,72)
 	},
+/obj/effect/map_effect/door_helper/level_access/command_foyer{
+	req_one_access_by_level = list("green","yellow"=list(19,38,72),"blue"=list(19,38,72),"red"=list(19,38,72),"delta"=list(19,38,72));
+	access_by_level = null
+	},
 /turf/simulated/floor/tiled/full,
 /area/horizon/hallway/deck_three/primary/central)
 "oeg" = (