diff --git a/TedBeyondLegendaryTweaks/Config/XComAI.ini b/TedBeyondLegendaryTweaks/Config/XComAI.ini
index d9057ff..88fb0a1 100644
--- a/TedBeyondLegendaryTweaks/Config/XComAI.ini
+++ b/TedBeyondLegendaryTweaks/Config/XComAI.ini
@@ -13,3 +13,16 @@
 +EquivalentAbilities=( KeyName=StandardMelee, EquivalentAbilityName[0]=DevastatingPunchMP)
 
 +EquivalentAbilities=( KeyName=DevastatingPunch, EquivalentAbilityName[0]=DevastatingPunchMP)
+
+[LW_Overhaul.UIScreenListener_Shell]
+
++BehaviorRemovals="BioViperRedFirstActionSelector"
+
++NewBehaviors=(BehaviorName=BioViperRedFirstActionSelector, NodeType=Selector, \\
+    Child[0]=TryMeristViperBite, \\
+    Child[1]=TryBind, \\
+    Child[2]=TryMoveThenPoisonSpit, \\
+    Child[3]=TryMoveThenPoisonSpitSingle, \\
+    Child[4]=SelectMoveStandard, \\
+    Child[5]=TryShootOrReloadOrOverwatch, \\
+    Child[6]=HuntEnemyWithCover)
\ No newline at end of file
diff --git a/TedBeyondLegendaryTweaks/Config/XComGameData_CharacterStats.ini b/TedBeyondLegendaryTweaks/Config/XComGameData_CharacterStats.ini
index 9c3e634..b03fd90 100644
--- a/TedBeyondLegendaryTweaks/Config/XComGameData_CharacterStats.ini
+++ b/TedBeyondLegendaryTweaks/Config/XComGameData_CharacterStats.ini
@@ -60,6 +60,35 @@ CharacterBaseStats[eStat_Mobility]=20
 [NajaM3_Diff_3 X2CharacterTemplate]
 CharacterBaseStats[eStat_Mobility]=20
 
+; =========================================
+; More mobility for Bio Vipers so they can bite
+; =========================================
+
+[BioViperSilver X2CharacterTemplate]
+CharacterBaseStats[eStat_Mobility]=18
+
+[BioViperSilver_Diff_1 X2CharacterTemplate]
+CharacterBaseStats[eStat_Mobility]=18
+
+[BioViperSilver_Diff_2 X2CharacterTemplate]
+CharacterBaseStats[eStat_Mobility]=18
+
+[BioViperSilver_Diff_3 X2CharacterTemplate]
+CharacterBaseStats[eStat_Mobility]=18
+
+[BioViperGold X2CharacterTemplate]
+CharacterBaseStats[eStat_Mobility]=20
+
+[BioViperGold_Diff_1 X2CharacterTemplate]
+CharacterBaseStats[eStat_Mobility]=20
+
+[BioViperGold_Diff_2 X2CharacterTemplate]
+CharacterBaseStats[eStat_Mobility]=20
+
+[BioViperGold_Diff_3 X2CharacterTemplate]
+CharacterBaseStats[eStat_Mobility]=20
+
+
 [AdvTrooperM1 X2CharacterTemplate]
 CharacterBaseStats[eStat_ArmorMitigation]=1
 
diff --git a/TedBeyondLegendaryTweaks/Src/TedBeyondLegendaryTweaks/Classes/X2DownloadableContentInfo_TedBeyondLegendaryTweaks.uc b/TedBeyondLegendaryTweaks/Src/TedBeyondLegendaryTweaks/Classes/X2DownloadableContentInfo_TedBeyondLegendaryTweaks.uc
index e3ff395..e8b1a3e 100644
--- a/TedBeyondLegendaryTweaks/Src/TedBeyondLegendaryTweaks/Classes/X2DownloadableContentInfo_TedBeyondLegendaryTweaks.uc
+++ b/TedBeyondLegendaryTweaks/Src/TedBeyondLegendaryTweaks/Classes/X2DownloadableContentInfo_TedBeyondLegendaryTweaks.uc
@@ -463,6 +463,36 @@ static event OnPostTemplatesCreated ()
 		}
 	}
 
+	// Bio Vipers get Vicious Bite
+
+	CharacterTemplateManager.FindDataTemplateAllDifficulties('BioViperSilver', DataTemplateAllDifficulties);
+
+	foreach DataTemplateAllDifficulties (DataTemplate)
+	{
+		CharTemplate = X2CharacterTemplate(DataTemplate);
+
+		if(CharTemplate != none)
+		{
+			CharTemplate.Abilities.AddItem('M31_ENEMY_CoilHunkerDamaged');
+			CharTemplate.Abilities.AddItem('LickYourWounds_LW');
+			CharTemplate.Abilities.AddItem('M31_ENEMY_ViperBite');
+		}
+	}
+
+	CharacterTemplateManager.FindDataTemplateAllDifficulties('BioViperGold', DataTemplateAllDifficulties);
+
+	foreach DataTemplateAllDifficulties (DataTemplate)
+	{
+		CharTemplate = X2CharacterTemplate(DataTemplate);
+
+		if(CharTemplate != none)
+		{
+			CharTemplate.Abilities.AddItem('M31_ENEMY_CoilHunkerDamaged');
+			CharTemplate.Abilities.AddItem('LickYourWounds_LW');
+			CharTemplate.Abilities.AddItem('M31_ENEMY_ViperBiteWithCrit');
+		}
+	}
+
 	// Grenadiers get Volatile Mix
 
 	CharacterTemplateManager.FindDataTemplateAllDifficulties('AdvGrenadierM1', DataTemplateAllDifficulties);