Well lets be scientific here. Lifting weights burns calories, lifting weights or doing jumping jacks alone wont do shyt for weight gain. I know that you know that pullin'.
If you want to burn fat then you have to clean up your diet, cardio helps. Lifting weights to gain LBM creates parasitic loss (muscle burns calories to maintain existence), so it will 'speed your metabolism' so to speak.
Are you doing circuit training or HST or what? If you are looking for mass I would highly recommend a normal routine, training the body 4 times a week or 5 times a week is insane for muscle building and high intensity workouts. I have gone up to 3x a week when I was friggin 18 and I could handle it, grew like a mother and still have the stretch marks 10 years later. In todays world I train 5x a week whole body ONCE and no moooooooore, I take weekends off unless I do cardio.
When I am deeper into a cycle volume goes up and sometimes frequency, as I see fit (I go by feel).
