diff -r 16ca23f8f623 -r 297cf5c19172 share/hedgewars/Data/Scripts/Multiplayer/Construction_Mode.lua
--- a/share/hedgewars/Data/Scripts/Multiplayer/Construction_Mode.lua	Fri Oct 05 14:57:44 2018 +0200
+++ b/share/hedgewars/Data/Scripts/Multiplayer/Construction_Mode.lua	Fri Oct 05 16:36:41 2018 +0200
@@ -153,7 +153,6 @@
 	{amMortar,	 1*costFactor},
 	{amDrill,	 3*costFactor},
 	{amSnowball,	 3*costFactor},
-	{amDuck,	 2*costFactor},
 
 	{amGrenade,	 2*costFactor},
 	{amClusterBomb,	 3*costFactor},