Helldivers' Last Stand?

Idea for a last stand mode to be available on challenging+ mission difficulties in the event of a "failure to extract." The mode would have to be initiated before the shuttle leaves otherwise resulting in the end of the mission. If initiated after shuttles leave, one resupply is dropped, and a secondary timer begins. Every 3-5 minutes survived, and any unfinished objectives completed would result in bonus xp at the cost of all samples obtained being lost. The players who didnt initiate the mode would immediately salute and die and the ones who did would disconnect from their party until they inevitably perished, at which point would receive a prompt to rejoin after re-entering their destroyer.