I'm kind of in the same boat as you. I want to retain as much muscle as possible while losing weight. I do this by eating at LEAST 1g-1.5g of protein per pound of GOAL BODY WEIGHT. I want to get down to 180, so I'm eating about 180g a day. Aside from that, you should know the drill. Tons of veggies, healthy fats. You need carbs earlier in the day, but later in the day you need your fats. Adjust your meals accordingly.
My little drill is that when I wake up, I wait about 30 min or so so my body isn't in complete shock. Before I eat anything (but make sure you drink your water) I will do about 30 min of cardio. I'm not talking HIIT, gonna kill you cardio. Just a light jog. Or you can even walk at an incline? Ex. jog a light 5.5 mph or walk 3.5 mph on incline. I get back and drink a protein shake. This will help you burn energy aside from carbs cause you simply don't have any. After my protein shake, I'll eat again a 3-4 hours later. Brown rice, tons of veggies, and chicken. Rest a couple hours then hit the gym. Uhm..
My split is something like Mon: Chest, Tues: Back, Wed: Rest Thurs: Shoulders/Traps/Hamstrings, Fri: Bis/Tris. Cardio 5-6 days a week: you choose when and where and how. I don't do quads or calves because my choices of cardio are tennis and cycling. I'm quite proficient at tennis so my footwork puts a lot of work into my quads and calves. I'm a beginner cyclist, but I love it and go for 20-25 mile rides. Quads definitely get the burn. Also, if you've ever deadlifted, or done any trap exercises, you know your forearms get insanely beaten up anyways. Abs kind of get strong with exercies like barbell rows and front delt raises. I do planks in my room from time to time too.
Obviously, take your protein after you work out and then follow it with a quality meal an hr or two later with tons of veggies, protein, and healthy fats. =D
Make sure you're eating enough calories. I know that sounds counter-productive, but if you're working out hard, you have to eat hard (but smart). Good luck!
-edit-.. Don't expect weight to come off as quickly as someone who is just eating healthy and doing cardio. There are going to be some trade offs and the scale probably won't make you feel too good. The best way to track your progress if you do something like this is take pictures. The scale won't tell you how much fat you lost, but your waist, muscle size, and vascularity will.