INSIDE THE BUNKER

• NEVER and I mean never look over the top of the bunker, it just makes you an easier target, and it's harder to get back in the bunker ALWAYS look from the side.  Try to get as low as possible, even if that means laying down, but once you lay down, you're committed, and it's hard to get back up.  When looking out the right side, keep your right knee down, and your left knee up, and looking out the left, vice versa.  This also makes for a smaller target.  Always stay seated sideways inside your bunker, that way you have less chance of being sacked from the side by suprise.  You should take just a quick peek around the corner of your bunker, and get and idea of where your enemy is, and QUICKLY pull back, unless of course you wanna get cracked in the face.
• After peeking, get your gun up pointed right at your enemy (pretend that your bunker is invisible) and then pop out (how I told you before) and fire 3-4 shots.  If you wanna get really fast, start shooting before your gun is even out of the bunker, get your bunker full 'a paint!     
• NEVER be predictable.  Come out of different sides, and even from the top and bottom (on the side, not the top of the bunker.)  After every pop-out, make sure to remember where your enemy is located, and when you get back in, you should listen.
• Always have an escape plan, where to go, and how to get there without getting shot out.  This is always a problem, when running, stay very low, and go out the back, so you still have a little protection from your bunker.

BUNKERING

• This basically means you charge someone's bunker, and take them out.   This is one of the main strategies of the game  
• There are two main types     of bunkering, regular, or diversional.
• Diversional-

  The diversional player has to not care if he/she gets shot a lot.  He/she should come right up the middle, shooting off a lot of shots to keep the people in the bunker down, then  run right by them, and keep shooting, try to find shelter.

The actual bunkerer should then wait until the diversional gets across the bunker to then start charging the bunker (prefferably from the side.)  If done correctly, it can be a game saver.

• Regular-

Make sure to know what you're about to get into, one slip up, and and you got yourself a red shirt.

Charge at the right moment, when you know the people in the bunker are dozing off and they let their gaurd down.  Try to keep a low profile, don't charge when you're in a crossfire with them.

Try to charge from the side, or anywhere there is no or little coverage.

Keep shooting to keep them down and momentarily defenseless.  Run right by them, still shooting.  And if you're really brave or just high on adrenaline, try to get in the bunker with them!