There s a bug happening in missions which drains the players energy shield for now reason and all the player can do is to break up the mission and leave.
No words on that or even a fix yet by DE
The WF forum is full of complaints about that since days.https://forums.warframe.com/topic/731346-constantly-taking-damages/https://forums.warframe.com/topic/731324-maggots-stay-on-after-death/https://forums.warframe.com/topic/731009-perma-dot-from-infested-units/https://forums.warframe.com/topic/721663-shields-constantly-deplete-then-recharge-then-depelte/https://forums.warframe.com/topic/729420-taking-constant-damage-over-time-from-nothing/
How is that professional ? How can a company with so many programmers ignore that ?
Stay away of this game if you arent playing it already until Digital Extremes starts to fix bugs like this !!!