Nore Sea Serpent to Water Serpent conversions.

data/campaigns/Legend_of_Wesmere/scenarios/09_Bounty_hunters.cfg

@@ -311,7 +311,7 @@
 
         {RANDOM_PLACEMENT 32 7 1 (
             [unit]
-                type=Sea Serpent
+                type=Water Serpent
                 id=Sealurr
                 name= _ "Sealurr"
                 side=4
@@ -356,7 +356,7 @@
 #ifndef EASY
         {RANDOM_PLACEMENT 3 9 2 (
             [unit]
-                type=Sea Serpent
+                type=Water Serpent
                 id=Scardeep
                 name= _ "Scardeep"
                 side=4

data/campaigns/Northern_Rebirth/scenarios/05a_The_Pursuit.cfg

@@ -2269,9 +2269,9 @@
             # wmllint: local spelling Ssssh
             message= _ "Ssssh! I hear something."
         [/message]
-        {NOTRAIT_UNIT 2 "Sea Serpent" 31 5}
+        {NOTRAIT_UNIT 2 "Cave Serpent" 31 5}
         [message]
-            type=Sea Serpent
+            type=Cave Serpent
             message= _ "ROOOAAARRR!"	# wmllint: no spellcheck
         [/message]
         [message]

data/campaigns/Northern_Rebirth/units/Cave_Serpent.cfg

@@ -0,0 +1,13 @@
+[unit_type]
+    id=Cave Serpent
+    [base_unit]
+        id=Water Serpent
+    [/base_unit]
+    description=_"The Water Serpent is a foe dire enough when encountered in the rivers and seas of the sunlit word, but his rare cave-dwelling kin are yet more terrible. Though their eyes are of little use in the stygian darkness of the deep caves where they dwell, they have become sensitive to even the tiniest sound that might indicate unwary prey in their domain, and will home in on it with remorseless efficiency."
+    # We used to deploy a Sea Serpent here.  The poison ability from
+    # the Water Serpent base type should do a pretty good job of
+    # compensating for the fact that the main attack is 6 points
+    # weaker than Sea Serpent's.  We'll boost his HP a little to take
+    # uup the rest of the slack.
+    hitpoints=65
+[/unit_type]

data/campaigns/The_South_Guard/scenarios/05_Choice_In_The_Fog.cfg

@@ -671,7 +671,7 @@
         [/if]
     [/event]
 
-    # A Sea Serpent in the Deep
+    # A Water Serpent in the Deep
 
     [event]
         name=moveto
@@ -682,7 +682,7 @@
 
         [unit]
             side=3
-            type=Sea Serpent
+            type=Water Serpent
             id=Beast of the Lake
             name= _ "Beast of the Lake"
             x,y=15,39