[PAYDAY 2] Diamond Store ECM rush: XP in ~55-60s || Fully optimized high-level rushing

Diamond Store ECM rushed in ~55-60s for an XP reward of . Everything you need to know to optimize the rush to this level, including detailed explanations of the necessary roles (pre-keycard, and post-keycard), how to properly “split“ the store to check all the cases without double-checking any spots that have already been checked, tips to efficiently mantain 100% Second Wind uptime, reliably opening the room to cameras without any risk of the guard shooting... and general tips, and things to keep in mind. As the disclaimer at the start of the video indicates, the idea behind having multiple heists with excellent XP efficiency is to avoid doing any heist repeatedly, which would lower its efficiency by 30%. By playing the usual Diamond Store on repeat (with a -30% penalty), you can get a full infamy level every 37 minutes (if tryharding) or 40-45 minutes (average lobby). By combining different heists into a rotation, and avoiding the XP penalty, you can get a faster farming speed while avoidin