To everybody using the Imperial Guard Operations path and Valkyrie Drop Transports - do not use the auto-equip function (default pressing the "z" key) in the pre-battle inventory screen! This will cause your first soldier to be stranded in the air. This will be fixed by the 018 release, but for now don't use auto-equip when deploying from the Valkyrie Drop Transport!
Edit: I'm attaching two ruleset file fixes for this - replace these in your ruleset folder.