0 0 0It's not really that hard to kill 100 Takens with revolver specially if you are going for all achievements anyway.Here is 100% complete guide to all achievement/collectibles and full game:
0 0 0The Revolver will be your primary go-to weapon anyway, so this achievement should come through natural progression during your first play through. If not, make sure that during your second play through you favor the Revolver. It will make your second run harder, so try and focus to make this your primary weapon on your first run.