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If anyone is wanting to help me with these achievments feel glad to message me on xbox GT-AftDan it will probably be around 830 today or sometime tomorow[Edited on 07.27.2011 11:38 AM PDT]
For the 200K just play on easy solo. How I did mine. Takes two-ish hours for each map.
i will help you if you kill the Batman
ill help to, but in what time zone are you, im in +2