diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@ Any help will be greatly appreciated.
 
 #### Contents
 * [Overview][]
+* [Guide lines][]
 * [Links][]
 
 
@@ -26,6 +27,13 @@ __Okay, nice project. Is it actually working?__ _I just want those files..._
 
 Yeah! We have it hosted on AppSpot. Take a look: [BattleScribe Data on Appspot][]
 
+## Guide lines
+### Sharing data
+It is better practice to define common entries/rules in a single file to get them from any army catalogue and to easily maintain it without duplicate oddities.
+* Common model between armies defined in a single original catalogue (eg. Mercenary) and included in another with a catalogueLink. 
+* Model's special rules in the game system's shared rules section.   
+* Weapon rules in their corresponding army catalogue's shared rules section. If you notice this weapon's rule is shared between armies, then define it in game system's shared rules.
+* Theme force rules in their corresponding army catalogue's shared rules section.
 
 ## Links
 
diff --git a/Skorne_Exigence.cat b/Skorne.cat
similarity index 100%
rename from Skorne_Exigence.cat
rename to Skorne.cat
diff --git a/Trollbloods_Exigence.cat b/Trollbloods.cat
similarity index 100%
rename from Trollbloods_Exigence.cat
rename to Trollbloods.cat