First off Welcome to AM!
Our fight team members (
http://musclepharm.com/Team-MP.html?subnav=2 ) all use the products a little differently but I know that most of them use Assault before their training sessions and I think most are using Recon right now. We have had some of them try different things such as taking extra servings of Recon pre-training in addition to their post training Recon. We have also had some of them use Battle Fuel to help with endurance and strength during their training. I'm not sure if any of them have done this recently but Shred Matrix can be used to help keep fighters weight down. Combat can be used to give them a little extra protein in their diets to help with recovery. Finally Bullet Proof can be used at night to help with recovery and reduce some of the fatigue that comes along with a fight camp.
Now if your looking to gain strength without gaining a lot of weight then I would recommend Assault before training and Recon post training. If you have extra money then I would also throw in Battle Fuel or Bullet Proof but those are something you can worry about down the line once you have a couple months of Assault and Recon under your belt. Your training and diet is really going to be important for achieving your goal though, you'll want to keep your calories slightly above maintenance and focus your training on strength rather than hypertrophy. For training I would suggest keeping your weights high and your reps low for your main movements and focusing your accessory lifts on any weaknesses you may have. It may also be a good ideal to throw in strongman type training a couple days a week to help with brute strength and endurance. A good training split may be something like this:
Lower body Heavy:
Squat or Deadlift variation for 3-5 reps
Glute/Hip exercise
Back Exercise
Ab Exercise
Upper Body Heavy
Standing Military Press, Push Press, or Bench Press variation - 3-5 rep max
Upper Back
Lats
Neck
Strength Conditioning Day
Plyometric Jumps, Depth Jumps , Kneeling Jumps, etc
Farmers Walks, Sandbag Carry, any other odd object carry
Sled Dragging or pushing for time, Hip Swings for time, sledgehammer for time, ropes
Weighted Abs
Recovery Day:
Neck
Pull Ups body weight only
Push Ups Body weight only
Make sure to start each training with a proper dynamic warmup and mobility drills. With our sparring classes you may have to cut back the volume a little bit but by focusing on heavy hitting exercise you will not only strengthen your muscle but it will also help with your CNS and muscle recruitment.