I just noticed some updates in the game for substitution tanks that are a good improvement. 1) you now get to keep control of your weapon selection when it is not the sub tank's turn. This was really nice in game to be able to plan ahead as normal! Though the minor disadvantage is that you don't know who controls the sub tank until the sub tank's turn comes up. 2) while the actual power and angle in the aiming circle still default to the last shot made, the "memory" shot in the aiming circle shows you the last shot made by that tank, which means you can now see what the last shot made by your tank or the sub tank was.