Dragging stuff through transfer points come with you

modular_darkpack/modules/z_travel/code/helpers.dm

@@ -0,0 +1,16 @@
+// Copypasta of get_z_move_affected
+/// Returns a list of movables that should also be affected when src moves through teleporters, and src.
+/atom/movable/proc/get_teleport_move_affected()
+	. = list(src)
+	if(buckled_mobs)
+		. |= buckled_mobs
+	for(var/mob/living/buckled as anything in buckled_mobs)
+		if(buckled.pulling)
+			. |= buckled.pulling
+	if(pulling)
+		. |= pulling
+		if (pulling.buckled_mobs)
+			. |= pulling.buckled_mobs
+
+		if (pulling.pulling)
+			. |= pulling.pulling.get_teleport_move_affected()

modular_darkpack/modules/z_travel/code/transfer_point.dm

@@ -72,10 +72,12 @@ GLOBAL_LIST_EMPTY(unallocted_transfer_points)
 	var/moved_dir = get_dir(arrived, src)
 	var/turf/exit_turf
 	exit_turf = get_open_turf_in_dir(exit, moved_dir)
-	if(exit_turf)
-		return arrived.forceMove(exit_turf)
+	if(!exit_turf)
+		exit_turf = get_turf(exit)
 
-	return arrived.forceMove(get_turf(exit))
+	var/atom/movable/moving_stuff = arrived.get_teleport_move_affected()
+	for(var/atom/movable/moving in moving_stuff)
+		moving.forceMove(exit_turf)
 
 // Use inside the umbra. visible
 /obj/transfer_point_vamp/umbral

tgstation.dme

@@ -1,4 +1,4 @@
 // DM Environment file for tgstation.dme.
 // All manual changes should be made outside the BEGIN_ and END_ blocks.
 // New source code should be placed in .dm files: choose File/New --> Code File.
 
@@ -8024,6 +8024,7 @@
 #include "modular_darkpack\modules\werewolf_the_apocalypse\code\subsplats\tribes\garou.dm"
 #include "modular_darkpack\modules\westfield_mall\code\mall_areas.dm"
 #include "modular_darkpack\modules\westfield_mall\code\modular_rooms.dm"
+#include "modular_darkpack\modules\z_travel\code\helpers.dm"
 #include "modular_darkpack\modules\z_travel\code\manhole.dm"
 #include "modular_darkpack\modules\z_travel\code\transfer_point.dm"
 // END_INCLUDE