Just wondering to find out that the Limited Edition Version package that four features does it got bug or not?
as for my (LE) four features list below which I not sure it BUG or NOT at multiplayer, as I play the multiplayer until now.

• Bonus XP – Players will jump into multiplayer battles with an edge by starting with enough experience points to gain early access to all 5 preset class load-outs. (Yes, I got that working after end of the match)
  
• SCAR Hologram Decoy – This special attachment to the SCAR will project a hologram image of the player, allowing them to confuse their opponents with the decoy. (It state LOCKED) I thought it should be UNLOCK and if so, which is the Letter for the keyboard? or beside LE even normal version also got this?
  
• SCAR Weapon Skin – This digital camouflage skin will allow players to add a personalized touch to one of the more popular assault rifles in the game. (In Single or multiplayer)
  
• Platinum Dog Tag – This special one-of-a-kind dog tag is one of over 250 that will be collectible in Crysis 2 multiplayer, helping to separate you from the rest of the field. (what does this for and how to I know where to check it)

As above can someone explain to me .... Please.... thank you.

well... I think just find out that below:

SCAR Hologram Decoy – This special attachment to the SCAR will project a hologram image of the player, allowing them to confuse their opponents with the decoy. (multiplayer)

Hologram Decoy unlock by Level Up.

SCAR Weapon Skin – This digital camouflage skin will allow players to add a personalized touch to one of the more popular assault rifles in the game. (multiplayer)

The Normal Editions have to unlock the Crysis 2 digital weapon skin, but the Limited Editions do not have it.