Guards wanted

Another day another mission done, and I never have to go to Damascus again!

Aside for plot related achievements, or those related to completing the game, the only one I have left to get is combo killing 50 guards. the thing is that combo kills are really hard to pull off and almost random, so only 1 in about 30 times it works, and they are more dangerous to do than counter kills (where you block most of the time). So I have been running all over the city trying to kill every guard I see, it's getting to be more violent then MadWorld. At this rate I'll have to kill off 1000 more guards before finishing...