Okay, so my main issue currently is the intro to my sci fi military story that I've pretty much fleshed out the most major key points, maybe four or so at the most, that I'd really like to keep. But I have a character that I'm having a bit of trouble placing in the timeline for plot's sake. Originally this character (we'll just call him private Joe) was going to be the catalyst for my villain to become her fulfilling role. He was supposed to be intentionally betrayed by said villain (we'll call her private hothead) and then my main character was going to take a dive deep into the realms of depression and heroic BSODs (for those of you who don't know, BSODs or "blue screens of death" refers to the thousand yard stare most patients that suffer from PTSD experience.) After some thought I believed it would be better for my main character's sake to begin her fall into madness at the beginning so that her squad mates had a chance to reinitialize the person she used to be. But now I can't decide between the two. So, for sake of plot and placement, should a supporting character's death be closer to the beginning or during the climax?