Mind to submit a patch to trac ? (I believe we need to share everything we fix even if it's not reviewed) This is the idea of OpenSource. There is a ticket for it http://trac.wildfiregames.com/ticket/2679 and this one seems related and useful for 0ad extended http://trac.wildfiregames.com/ticket/1550 For the boats I assumed it didn't work. To fix the walking units, you'll have either to replace the mesh with one that doesn't have a walk /run anim, or disable those anims, and replace them by the steady one.