In the text it talks about cheating with the achievements. So basically you can do the Gruntapocalypse/rocket trick, and you can do the revert to last save trick in ONI Sword base, but you can't just use the disable wifi trick? (According to Youtube: To perfform, find an achievement that 1) requires killing enemies in a campaign mode, and 2) rewards high credits. Get 1 enemy away from completing the achievement, and then get a checkpoint. Kill the required enemy, get the achievement, unplug your wifi as soon as you see the notification, and click "Revert to last save". Plug in your wifi again, and you will find you can do it again, and still get the credit reward.) I have to admit that this is tempting, as I am STILL a Warrant Officer, and it takes FOREVER to get to the next rank. This trick would be nice, but if it's illegal, I'll stick to ONI.