The Division (opens in new tab)'s new arena-style 'raid', Falcon Lost (opens in new tab), is causing headaches of Destiny loot cave proportions. By vaulting portable cover to glitch through walls, it's possible skip huge portions of the encounter and simply nuke the final boss for its tasty loot. Beaten this way, the weekly Incursion isn't registering completion, allowing the unscrupulous to farm high end gear at an obscene rate.
PvP in the Dark Zone has been thrown way out of whack as honest players struggle to compete with those geared to the hilt. It doesn't appear that there's an easy fix either—this isn't a single exploit but a whole range of wall hacks that leverage the portable shield. The same method was used to get players into unused areas (opens in new tab) potentially reserved for DLC, such as Central Park and the USS Intrepid. The video below is one of myriad Falcon Lost farming glitches littering YouTube.
Ubisoft is aware of the problem. It can't fail to be—the forums are furious, even by internet standards. Community manager Natchai has attempted to assure (opens in new tab) players that fixes are on the way in addition to "looking into what can be done in terms of punishment for those who have exploited".