You should still do weight training even though your goal is not to build muscle right now.
Through weight training you'll keep your lean body mass, which will keep your metabolism high. Unless you're a beginner, building muscle requires a calorie surplus anyway, so since you'll be creating a calorie deficit you won't be building that much muscle anyway even if it were your goal to do that at the same time as losing fat.
In addition, weight training has a good 'afterburn' effect, especially intense weight training, which means that you'll be burning more calories in general for almost two days after an intense weight lifting session.
I'll always use that as a basis.
Next, to program your body for losing fat, you need to create a structural calorie deficit.
I tend to do that through calorie cycling, so my body never adapts to a lower calorie input. Whenever I've had about 5 days of low calorie days, I do 1 or 2 higher calorie days to signal to my body that there's plenty of food available (a.k.a. no 'famine' coming up), and that it's safe to keep burning calories.
Other than that, I focus on whole, unprocessed foods, 5-6 meals spread across the day, and a protein source in each of them.
Since you said you wanted to go all out, here's another thing you can do:
- Go low carb on the low calorie days;
- Go high carb on the high calorie days;
- Make sure you do one of your intense weight lifting sessions on a high calorie day;
Use all the above as your foundation.
Next, add as much other activity as you possibly can to this foundation. That'll all be additional calories that your body will get out of its fat stores.
For example, add all the cardio you want to this.
Hope that helps...