Slasher_101

Its an exploit that I'm trying to reproduce, I'll tell you that its really easy to do with seige towers, like this: 1. Give an active seige tower a number (0-9) 2. Send the seige tower to attack a wall 3. When it reaches the wall and the engineers come out, tell them to build or man some other seige equipment 4. Press the number to get the seige tower 5. Tell it to attack another part of the wall 6. It will do it even though it has no engineers, and when it reaches the wall 4 new engineers will come out I really want to know how he does this one with the ram though, because it would help my speedrun, anything to save time. I came up with such a ridiculous strat last night.... You can use ten tunnelers in a row to dig in one line, and when the soil rises it goes so high that I used it as a staircase to get ontop of a cliff. Screenshot:

I'm making a speedrun of Stronghold and Crusader and I saw this video that shows lots of tricks I never knew about. The trick I'm interested in is to duplicate engineers with a ram, the trick is at 2:36 in this video. Does anyone know how to do this?? Ive done it with seige towers, that's pretty easy but I can't do the ram one