I have only encountered a hacker once. It was on a US Seattle server and someone nuked the server... Really annoyed me but it was only once and I was new to the game, so I had little in terms of gear and weapons. Unfortunately any game where the risk and reward don't entirely jive, where the game doesn't have instant gratification and where the cost of loss is so high, there will be cheaters. If for nothing else, the cheaters will simply do it to grief those who enjoy the game for what it is.