Just for clarification, the above mainly concerns random spawning in a mission or campaign. This would be different if one is using a spawn that must appear in a mission, which is normally the case when I am making a spawn.

For instance, in the case below in the 14th_March_1941_Do17Z_spawn.spawns file 1D1 is used

<?xml version="1.0" encoding="UTF-8"?>
<SpawnControl Stop="n" HighAgl="9999.8779296875">
<Spawns Roll="1D1">
<Spawn ID="1" FormationType="14th_March_1941_Do17Z_spawn"/>
</Spawns>
</SpawnControl>

relating to the xml file 14th_March_1941_Do17Z_spawn.xml

<?xml version="1.0" encoding="UTF-8"?>
<AirFormation Country="Germany" FormType="trail" OffsetScaleFactor="20" Directive="nothing">
<Unit Type="ai_blitz_do17z2_5k+ba" Repeat="1"/>
<Route>
<Waypoint PositionType="latlon" Lat="N53*10'51.4005&quot;" Lon="E0*23'17.8953&quot;" Speed="92.5" Type="turn" Alt="3657.59"/>
<Waypoint PositionType="latlon" Lat="N53*14'46.7210&quot;" Lon="E0*20'49.2769&quot;" Speed="92.5" Type="turn" Alt="3657.59"/>
<Waypoint PositionType="latlon" Lat="N53*3'0.7956&quot;" Lon="E0*35'3.8236&quot;" Speed="92.5" Type="turn" Alt="3500.00"/>
</Route>
</AirFormation>