uh.. what do you mean by Midpole? the MMS is a good idea.
Pole in front of gondie. (by B-dom)
Here are my main power positions on that map:
(Dark lines are where I move around; opaque lines are line of sights I cover)
#1 (red)
Mid pole.
Basically I hug the inside of this. From here you can cover the "office" or what I call mid-gondie. The advantage this position has over mid-gondie is purely the fact that you can pop behind the pole for cover and switch sides or come back out the same side and catch them off guard.
You don't want to move a lot here; you can hear people coming from blue or red snipe so you just pick them off as they turn the corner. I usually just switch sides based on spawn flip.
From power position #1 you can transition to either position on the east or west. I'll move east first.
#2 Blue (pro shop/changing shop)
From #1 you'll want to look into the pro shop window (red snipe) and make sure no one is looking down. Then you'll run up and clear pro shop without jumping in.
After you do that you DO NOT push into the shop because that will cause all kinds of spawn flips and shit. The power position I use is on the corner of the shop (marked with a dot). From here you can see onto the gondie stairs and pick off snipers coming around fun bag. You can sit and pick off people (corner camping lol) coming down mid-lane or if you're feeling brave you can just step out and pick them up as well. Periodically you'll want to rotate back to red snipe window and clear them out. Another tip is that you can stand IN FRONT of red snipe and have a line of sight all the way to blue snipe that people won't look for (works on both sides).
From here you'll usually want to rotate back to mid-pole on a spawn flip but you can also move into the gondola power position.
#3 Mid-Gondola (pink)
A lot of people will just sit in the window. BAD BAD BAD spot. You'll kill 1-2 people and get picked off. What you want to do is pop out and see where they're at. You have LoS to both red and blue snipe as well as mid-pole. The bulk of your kills will come from standing by office door and picking people off that are entering gondola from lockers/cafe but you have a good LoS to the snipes too.
#4 Green position (when other team has A-Dom/Cabin spawn
You don't really rotate to this position from Gondola (unless you jump out mid). It's more of a mid-pole transition when you're pushing into A-Dom spawn. I'll come through the blue snipe and use the terrain to give me cover. You want to be rotating around the mound and popping up to pick people off at cabin. This is a really short position because in a mode like TDM, after you kill 3-4 people the spawn will flip so you either move into Medic and clear pole or rotate to gondola. Rinse and repeat.
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You'll notice that I never fuck with the south side of the map. I sometimes use it to move but for the most part it chokes too hard and you can work yourself into a position where you get trapped. The north side, on the other hand rarely has traffic so it's a great way to transition east to west and vice versa.