Friendly fire has been a personal scourge ever since it turned me off in Tom Clancy’s original Rainbow Six, where I quickly got tired of waiting five minutes to respawn after being mowed down by over-enthusiastic teammates in the first five seconds of each match. Games franchises like Counter-Strike have taken some meaning away from what was originally meant to make gameplay a multifaceted experience, turning friendly fire into a mere penalty for bad play rather than an incentive to develop skill. Helldivers 2isn’t the kind of game I expected to change the status quo on that, with its gritty a…