add syndies+nukies gamemode (#18991)

Resources/Locale/en-US/game-ticking/game-presets/preset-nukeops-traitor.ftl

@@ -0,0 +1,2 @@
+nukeops-traitor-title = Traitors and Nuclear Operatives
+nukeops-traitor-description = Both Syndicate agents and Nuclear Operatives have targeted the station. Will they fight or cooperate?

Resources/Prototypes/game_presets.yml

@@ -73,6 +73,19 @@
     - Nukeops
     - BasicStationEventScheduler
     
+- type: gamePreset
+  id: NukeopsTraitor
+  alias:
+    - nukeopstraitor
+    - syndinukies
+  name: nukeops-traitor-title
+  description: nukeops-traitor-description
+  showInVote: false
+  rules:
+    - Nukeops
+    - Traitor
+    - BasicStationEventScheduler
+
 - type: gamePreset
   id: Zombie
   alias:

Resources/Prototypes/secret_weights.yml

@@ -1,6 +1,8 @@
 - type: weightedRandom
   id: Secret
   weights:
-    Nukeops: 0.25
+    Nukeops: 0.15
     Traitor: 0.65
+    # TODO: remove when dynamic is a thing
+    NukeopsTraitor: 0.10
     Zombie: 0.10