Support staged group Guild transport

docs/OPTIONAL_ALLIANCE_VICTORY.md

@@ -1,5 +1,22 @@
 # Optional three-stronghold alliance victory
 
+## Group Guild transport — 28 October 2026
+
+**Staged Basic prototype, not a selectable game mode.** Both Guild group
+allies can use native cross-planet transport, including a Fremen ally's
+southern-reserve source. Only Guild may return its own forces to reserves.
+The shipper can name separate pledged shares from its group allies. Permission
+and the discounted rate retain their distinct Karama windows before payment
+or transfer. Rate cancellation keeps the exact original shares and requires
+the shipper to fund the full-price remainder; otherwise the unused declaration
+returns without spending. Guild's own contribution goes to the bank and
+other named contributions go to Guild. Table quotes and minimal bots use the
+same available group permission. The [publisher rules, pp. 9 and 19](https://www.gf9games.com/dunegame/wp-content/uploads/Dune-Rulebook.pdf)
+and [FAQ, pp. 2 and 7](https://www.gf9games.com/dune/wp-content/uploads/2020/11/Dune-FAQ-Nov-2020.pdf)
+describe the pair power and cancellations. Applying it to both allies and
+the donor allocation procedure are provisional. Advanced, optional modules,
+No-Field and purchased-rate combinations remain outside this staged path.
+
 ## Group Guild-rate shipments — 28 October 2026
 
 **Staged Basic prototype, not a selectable game mode.** Guild and both members
@@ -14,7 +31,7 @@ payments go to Guild. The table quote and minimal bot use the same group rate.
 The [publisher rules, p. 19](https://www.gf9games.com/dunegame/wp-content/uploads/Dune-Rulebook.pdf)
 grant the Guild rate to its ally; the [FAQ, p. 7](https://www.gf9games.com/dune/wp-content/uploads/2020/11/Dune-FAQ-Nov-2020.pdf)
 permits Karama to prevent that rate. Applying the benefit and original split
-to both members of a larger group is a provisional composition. Special
+to both members of a larger group is a provisional composition. Other special
 transports, independent purchased rates, optional modules and full group play
 remain separate; no lobby exposes the group option.