Use the code 20OffGames-1 to get this price (one use per account, multiple accounts / email addresses work though)
As title, these are ridiculously cheap and must be worth making another account with Tesco in order to use a second code!
This equates to 150 points per pound, one of the best rates I've come across (for comparison, the usual 2100 for ~£15 is 140 points per pound). And of course, since the code is 20% you can add as many as you like to your basket - time to stock up!
Note: the Black Ops branding is just that, you don't get anything special (the reasoning is the new map pack costs exactly 1200 points)
8% topcasback / quidco makes these even cheaper at £7.35 each if it tracks!