Built-in 12 activate_unit returns 0 when the live object is NULL: it registers an object that already exists and cannot create one. So a wave arrival is a craft reaching a point on its route, not a new record, and a count of entity records was never going to move. Stage 02's UnitGroup totals Count = 116 across 111 squadrons, matching the live probe's flat 116. The natural objection is that 116 might match by accident -- it does not: across all 28 stages the roster totals run 2..116, and 116 is the MAXIMUM and unique to Stage 02, with nothing else within 5. Three independent things agree: the handler cannot spawn, the roster totals 116, and the live count sits at 116 while 22 of 113 routed squadrons have a route starting after t=0. Still n=1 for the per-member identity (only a Stage 02 save exists), and this cannot settle timetable-vs-event -- that needs a position probe, not a count.