I agree with wheatgrinder, you'd be better off reshooting this and thinking it through again. There's some potential there (I'm guessing you're aiming at the Guy Ritchie audience), but it's riddled with poor decisions in terms of shot composition and camera work.
For example, in the opening shots alone, you have the shot of the one guy on the chair where's his entire body is on the left hand side of the frame and he's pointing outwards, when it's generally considered a good idea to leave space in the direction the subject is facing so you give the audience and area to focus on, even if there's nothing there. The shot of Bernie in the bath tub for some reason moves but keeps literally all the content in the shot the same, and at points has Bernie going off camera before settling on a shot where half his arm is off frame. Literally no idea why there's a half second shot of the gun either.
Skipping then to the long shot of them beating a guy up with the heavy metal music on in the background... I can understand why you did that. Contrast is often the basis of a lot of humour, but such a blatantly inconsistent change in style doesn't work well - for a good example of how to use contrast appropriately, look at
this fight scene from Shaun of the Dead that is basically doing the same thing as you (emphasizing a fight scene with somewhat inappropriate music), but it keeps it all so consistent throughout that it makes it believable in the context of the film. In particular I didn't understand why you chose to focus on guns in the first scene, and then carry on with them punching the crap out of some guy with no weapon in sight - for the guy that seems to pride himself on his professionalism, it doesn't make sense for him to beat the guy up in public and then drag him away to a forest. The complete shift in style is completely off.
In my opinion, you definitely should have lead up to that scene - jumping straight from "let's go" to "beating up some guy" just doesn't sit right with me, and it feels rushed. The use of a long shot doesn't seem right, especially straight after a series of close ups in the apartment. What I tend to aim at when planning is to have at most two (more often just one) establishing shot for the scene, with little to no action in, but not lasting too long - of course that's not always appropriate either.
What I would suggest is looking more at the work of Guy Ritchie, especially Snatch (I'm not too big a fan of Lock Stock and Two Smoking Barrels but people tend to like that too), and analyzing the different scenes. With the scene where you have the three guys in the forest, you have the shots of the individuals speaking often with seperated subjects... I'm not sure if I said that right. Basically, you've got a lot of shots where you only have one person's face in it, whereas I think it'd be much more appropriate to have shots where they at least have the person each one is talking to in shot. The perspective of the scene is very important, and Ritchie tends to put in scenes with group perspectives - where there are obvious groups of different people, and the scene is clearly following them. For example,
this scene in Snatch - you'll notice that when the two are talking to each other, the camera has both of them talking to each other in the same shot, and when Boris shows up and moves Tommy off camera the shot switches to contain both of the main characters once again, before temporarily following Boris away from the house as both of the characters focus on him.
Also, the sound of a sheep with them saying it's a pidgeon? What?
With the shots of Bernie shooting, it would have been more comical and believable in my opinion if you focused on the other guy's reaction as Bernie shoots off-camera - you'd avoid the technical problem of not being able to make a believable gun shot, as well as improve that scene.
Overall, one of your main problems is a lack of appropriate planning for your shots, as well as trying to shove to many shots in there. For a film that seems to be going with basically the same style as Guy Ritchie's Snatch, I'd definitely take a look at that film and the timing of shots - shots don't necessarily have to change between every single line of dialogue, nor every couple of seconds just for the sake of change up. The above scene I mentioned has the very long shot of the two characters talking, for example, and
this scene in particular I quite like.
So yeah, better planning and a look at how to position subjects in your shots would go a long way to making this better. Here's a couple of links to get you started:
Lights Film School - Shot Composition and Framing
Lights Film School - Head Room and Lead Room