M320 grenade launcher ammo types

If you are wondering how to use smoke grenades with your freshly unlocked M320 grenade launcher: you have to unlock the ammo first. It doesn't seem to be documented in Battlelog, but after 10 kills you get flechette rounds, smoke rounds follow at 20.

Support players can switch around the ammo on their mortar directly, using 1 for the normal shells and 2 for smoke.

Smoke can be a huge asset to cover assaults on an MCOM, especially in Rush games. (Seine crossing bridges say hello) Happy hunting!

How to damage a tank

Tanks in Battlefield 3 have different amounts of armor on the front, their sides and the back, allowing for a bit of strategy in bringing them down. The following weapons do 'points' of damage in relation to the side of the tank you hit. Especially notice the "grenades - no effect" bit ;)

RPG

• Front - 22
• Side - 36
• Back - 61

Tank

• Front - 24
• Side - 34
• Back - 58

TOW Missile

• Front - 34
• Side - 49
• Back - 81

Blackhawk minigun

• Side - 61
• Back - 96

Attack Chopper Machine Gun

• Front - 61
• Side - 87
• Back - 100 (kill)
  

Attack Chopper Rockets

• Front/Side/Back - 43
• Armor does not affect damage

Javelin

• Front/Side/Back - 35
• Armor does not affect damage
  

C4

• Front/Side/Back - 50
• Armor does not affect damage
  

AT Mines

• Front/Side/Back - 50
• Armor does not affect damage
  

Mortar

• Direct Hit - 22
• Also has splash damage
  

Jet Rockets

• Front/Side/Back - 43
• Armor does not affect damage

Jet Machine Guns

• Front - 22
• Rear - 89
  

Engineer Torch

• Front - 4.5dmg/sec
• Back - 12.5dmg/sec

Grenades

• No Effect
  

Anti-Air (Tunguska)

• Front - 39
• Side 61
• Back - 100 (kill)