At the risk of this becoming a treatise, I'll tell you about my guard game. There are some differences between what I'll do with and without the gi, but for the most part my game is fairly universal (doesn't even change that much for MMA other than placing a much higher priority on scrambling back to the feet rather than actively engaging in guard work).
- Against a standing opponent at a distance I'm looking to get some form of leg control. If uke is close enough for me to just reach out and grab, I'll try to get a shin-shin position with a very deep arm wrap, ideally his calf in the crook of my elbow. From there it his weight is neutral or angling out I'll pull into SLX, if his weight is inside (like he's trying to knee slice) I'll look to come up on a single. If I get to SLX I'll try to sweep, if it's not working the switch to X is always there. With the gi I'll also play cross collar + sleeve just for distance management and to set up omoplatas. It's riskier in the gi to hang out in a shin-shin position just because the passer can kill a lot of your activity with pants grips. You have to move when you get there.
- If uke is too far away to get a good leg grip, I'm going to come up to at least one knee and look to shoot. I'll often shoot just to get to the leg and then pull right back into guard, but I don't butt scoot. I think it's just too slow against a highly mobile opponent (and it's a terrible idea for MMA).
- Against a kneeling opponent I play butterfly. I'm very careful to keep my hands in front of my feet and not engage my hooks until I have good upper body or wrist control. If you engage your hooks prematurely, you're at great risk of getting flattened and passed, or leg weaved. In terms of what I'm looking for it's pretty basic stuff. Cross arm grips lead to arm drags and hook flips, a low head from uke leads to snap downs to guillotines and coming up on top turtle, double unders leads to leg lock entries, double overs or over/under leads to hook flips. A few things you have to have on lock to play butterfly well (at least for me):
- you need to kick out and arm drag instantly against someone controlling your ankles
- If you opponent puts one foot up, get to shin-shin instantly or ideally ankle pick
- If uke leads with his head to try and flatten you, scooting back and guillotining needs to be fast
- If uke sits on your feet to try and kill your mobility, you have to make space and kick one out right away
- Any time uke is able to split your guard and get a foot in the middle, you have to either come up on a single or pummel your leg back inside instantly. The importance of controlling inside space here cannot be overstated.
- When forced to I play half guard. It's not a guard I go to by choice, though sometimes I'll play a butterfly half when I'm looking for specific leg lock entries. When I do have to play it, the most important things are to control uke's far wrist while framing on his face/neck/shoulder with your top side hand. If you can do both you'll kill the cross face, the leg scoop, and block the underhook. From those frames, be ready to circle your arm under for the underhook. Don't release the far wrist until you can glue your head to uke's hip. That prevents the cross face. Now you can release and shoot your bottom side arm under the leg and start entering the Leite series, which I believe to be the best way of playing traditional half guard.
That's pretty much it from a high level standpoint. The specific techniques you can learn anywhere, the hard part about playing this style of guard is that you have to be extremely active and fast on your responses, you can't really let uke ever get strong control of your legs, flatten you out, or control inside space. You also have to develop a feel for when you can attack the preferred inside angle to get under and into the SLX stuff, and when you have to take the outside angle with omoplatas and single legs. Other than that I'd have to actually watch you roll to give you more pertinent advice, but failure to have a sense of urgency about bad positioning (and not pulling the trigger when you have a momentary positional advantage) is the number one mistake I see people making playing the BF/X complex. This is not a guard system that features slow systematic setups. It's a lot more like wrestling or striking where you use movement, feints, and forced reactions to create brief openings that you have to seize right away.