Advice needed please about Call of Duty black Ops

[shelsco]

My 12 year old son has asked for Call of duty Black ops for christmas because most of his friends are getting it and have the latest CoD already. I know its an 18 rating and because of this I don't want him to have it. He's already apparently played it at some friends houses and my DH has watched a video of it online and thinks its probably okay as with the killing akin to cowboys and indians on the telly when he was younger. I feel uncomfortable as it must be 18 for a reason but if most of his friends have it, is it just me? Can anyone give me any details which could help me make a decision?
Thanks

These games are certified 18 fora reason. If any adult is permitting a minor to be exposed to these it is actually a form of abuse.

No, black ops 2 is not scarring in any single way. And as above, it is not a form of abuse. Letting kids play higher rating games is just a suggestion. Not the law. Multiplayer is in no way gory or anything. If it was that bad, it would be rated A. People judge games on ratings, others do not. Either way, it is just ignorant.

To be honest, CoD isn't really deserving of an 18 rating (PEGI), there are much worse games and is only an 18 on principle as it is not particularly violent and all the graphical content can be turned off, go for it, it improves hand eye coordination and reflexes, plus your son will love you for ever (until next November when Ghosts 2 comes out)

First of all the scene of the airport was in Modern warfare but now in black ops 3 there will be new melee weapons added to the particular game black ops 3