Things to remember about mileena. A max range d4 gets her nothing, she doesnt have anything fast enough to use her advantage, unless she wanted to try to check you with a roll or another d4. So just be patient with it, try to bait a d4 out and whiff punish it, cage can use fwd3, b3, or if you want you could just hit her with a downpoke of your own (probably d3) and go into pressure if that is easier. As far as straight up pressure, she has some of the slowest normals in the game. I will go into specifics with cage because I know him but I am sure these things can be applied to other characters. Do not be afraid or respect her in any way. No armor, slow ass normals means fwd3 and fwd3 again. Don't even bother crouching in your pressure, that way she can never get max advantage of her d3. If she hits you with a d3 and you are standing, I am pretty sure you can fwd3 out of all her options except a throw or a d4 if you are player 2. Imo you should pressure her until you have a nice health lead, than use fwd33b3 to build a little more meter and gain some space, and make mileena rush you down, which means you will be able to start whiff punishing with b3 and she has to take lots of risks. Your teleport and ex teleport punishes, to keep it simple, can just be d1 under the sai, fwd3 nutpunch.