gave some monsters appropriate undead_variations

data/core/units/monsters/Cuttle_Fish.cfg

@@ -13,6 +13,7 @@
     advanceto=null
     {AMLA_DEFAULT}
     cost=40
+    undead_variation=swimmer
     usage=fighter
     unit_description= _ "Cuttle Fish are gigantic creatures of the seas. They can grab their opponents with strong tentacles, or spit a poisonous black ink from a distance. The best way to survive an encounter with these monsters is to remain ashore."+{SPECIAL_NOTES}+{SPECIAL_NOTES_POISON}+{SPECIAL_NOTES_SWARM}
     die_sound=water-blast.wav

data/core/units/monsters/Fire_Dragon.cfg

@@ -17,6 +17,7 @@
     advanceto=null
     {AMLA_DEFAULT}
     cost=100
+    undead_variation=drake
     usage=archer
     unit_description= _ "A dragon is a legendary creature, normally seen only in fantastic tales. They are very rare, and were it not for the historical events, the singlehanded destruction of cities and towns that these creatures have wrought, they might be dismissed as mere myth. Legends are very specific about the ravages of dragons; noting their great strength, speed, their preternatural cunning, and above all else, the great fire that burns inside of them.
 

data/core/units/monsters/Sea_Serpent.cfg

@@ -16,6 +16,7 @@
     advanceto=null
     {AMLA_DEFAULT}
     cost=40
+    undead_variation=swimmer
     usage=fighter
     unit_description= _ "Sea Serpents are gigantic monsters, capable of capsizing boats by themselves."
     die_sound=water-blast.wav

data/core/units/monsters/Tentacle.cfg

@@ -17,6 +17,7 @@
     advanceto=null
     {AMLA_DEFAULT}
     cost=12
+    undead_variation=swimmer
     usage=fighter
     unit_description= _ "Tentacles of the Deep are the appendages of some greater monster that lurks below the waves."+{SPECIAL_NOTES}+{SPECIAL_NOTES_REGENERATES}
     die_sound=water-blast.wav

data/core/units/monsters/Yeti.cfg

@@ -13,6 +13,7 @@
     advanceto=null
     {AMLA_DEFAULT}
     cost=80
+    undead_variation=troll
     usage=fighter
     unit_description= _ "Little is known about Yetis, ape-like creatures said to live in remote and snow-covered mountains. Few profess to have seen one, and their existence is doubted by many."
     die_sound=yeti-die.ogg