Command limit
Command limit is a limit on how large any one individual fleet in an empire can be. An empire's base command limit is 20, increased by the following (the hardcoded maximum is 500 but cannot be reached without mods):
+10 per hull type technology (Total: +40; +30 without Apocalypse DLC)
+20 per fleet doctrine technology (Total: +100)
+10 per Admiralty Support Staff technology (repeatable, but only 5 times)
+10 Civic distinguished admiralty.png Distinguished Admiralty civic
+20 Tradition supremacy war games.png War Games \ Three-Dimensional Awareness \ Combat Variable Mitigation supremacy tradition
+20 Ap galactic force projection.png Galactic Force Projection ascension perk
Maximum attainable Command Limit without mods: 260 (250 without Apocalypse DLC)