Sorry, i have been a little tied up in real life, so I have have missed the 1st and 3rd codes for this week end. However here is the forth
PC / Mac SHiFT Code: CB53T-R99X5-5XTJJ-BB3JB-BWTKR
Xbox 360 SHiFT Code: WTCBB-JBH59-FHX3R-KXJJ3-T9XW5
PlayStation 3 SHiFT Code: C3CJT-KWCZK-BCCC3-HB5JJ-SBHW9