I've been grinding out the armor 2.0 raid mods (4 secret chests/week in LW, 3 secret chests/week in SotP) for weeks and hadn't gotten a single taken or fallen mod. Then I suddenly got 2 fallen mods and 3 taken mods this week. My question is, did Bungie change it so the drop rate increases with each successive run, similar to what they did with Anarchy, Terrabah, etc.? Would be good to know that my grind is more likely to end sooner than later (still need fallen barrier and armaments :| ). Looked all over the forums and it seems the actual drop rates of these mods are still shrouded in mystery.