...

code/_globalvars/misc.dm

@@ -26,7 +26,7 @@ GLOBAL_VAR_INIT(minimum_exterior_lighting_alpha, 255)
 GLOBAL_DATUM_INIT(item_to_box_mapping, /datum/item_to_box_mapping, init_item_to_box_mapping())
 
 //global tacmap for action button access
-GLOBAL_DATUM(tacmap_datum, /datum/tacmap/status_tab_view)
+GLOBAL_DATUM_INIT(tacmap_datum, /datum/tacmap/status_tab_view, new)
 
 /// Offset for the Operation time
 GLOBAL_VAR_INIT(time_offset, setup_offset())

code/controllers/subsystem/minimap.dm

@@ -556,6 +556,12 @@ SUBSYSTEM_DEF(minimaps)
 	allowed_flags = minimap_type
 	owner = source
 
+
+/datum/tacmap/status_tab_view/New()
+	var/datum/tacmap/status_tab_view/uscm_tacmap
+	allowed_flags = MINIMAP_FLAG_USCM
+	owner = uscm_tacmap
+
 /datum/tacmap/Destroy()
 	map_holder = null
 	owner = null
@@ -660,7 +666,7 @@ SUBSYSTEM_DEF(minimaps)
 			. = TRUE
 
 		if ("updateCanvas")
-			// forces state change
+			// forces state change, this will export the svg.
 			toolbar_updated_selection = "export"
 			updated_canvas = TRUE
 			. = TRUE
@@ -704,6 +710,7 @@ SUBSYSTEM_DEF(minimaps)
 					current_squad.send_maptext("Tactical map update in progress...", "Tactical Map:")
 
 				human_leader.visible_message(SPAN_BOLDNOTICE("Tactical map update in progress..."))
+				human_leader << 'sound/effects/sos-morse-code.ogg'
 				COOLDOWN_START(GLOB, uscm_canvas_cooldown, canvas_cooldown_time)
 
 			message_admins("[key_name(user)] has updated the tactical map")

code/game/machinery/computer/groundside_operations.dm

@@ -27,10 +27,6 @@
 		RegisterSignal(SSdcs, COMSIG_GLOB_MODE_PRESETUP, PROC_REF(disable_pmc))
 	tacmap = new(src, minimap_type)
 
-	// global tacmap for marines to access through an action button.
-	// dumb implementation for testing, fix later.
-	var/datum/tacmap/status_tab_view/uscm_tacmap
-	GLOB.tacmap_datum = new(uscm_tacmap, minimap_type)
 	return ..()
 
 /obj/structure/machinery/computer/groundside_operations/Destroy()