Enable the lvl3 outlaws everywhere and remove the USE_L3_OUTLAWS define.

data/campaigns/Liberty/_main.cfg

@@ -12,7 +12,6 @@
     first_scenario=the_raid
 
     define=CAMPAIGN_LIBERTY
-    extra_defines=USE_L3_OUTLAWS
     difficulties=EASY,NORMAL,HARD
     difficulty_descriptions={MENU_IMG_TXT2 "units/human-peasants/peasant.png~RC(magenta>red)" _"Peasant" _"(Easy)"} + ";" + {MENU_IMG_TXT2 "units/human-outlaws/outlaw.png~RC(magenta>red)" _"Outlaw" _"(Normal)"} + ";" + {MENU_IMG_TXT2 "units/human-outlaws/fugitive.png~RC(magenta>red)" _"Fugitive" _"(Difficult)"}
     icon="units/human-outlaws/fugitive.png~RC(magenta>red)"

data/campaigns/Northern_Rebirth/_main.cfg

@@ -10,7 +10,6 @@
     rank=240
     first_scenario=chain_break
     define=CAMPAIGN_NORTHERN_REBIRTH
-    extra_defines=USE_L3_OUTLAWS
     difficulties=NEWBIE,EASY,NORMAL,HARD
     difficulty_descriptions={MENU_IMG_TXT2 "units/human-peasants/peasant.png~RC(magenta>red)"    _"Peasant" _"(Normal)"}  + ";" +
     {MENU_IMG_TXT2 "units/human-loyalists/spearman.png~RC(magenta>red)" _"Spearman" _"(Challenging)"} + ";" +

data/campaigns/The_Rise_Of_Wesnoth/_main.cfg

@@ -8,7 +8,7 @@
     name= _ "The Rise of Wesnoth"
     abbrev= _ "TRoW"
     define=CAMPAIGN_THE_RISE_OF_WESNOTH
-    extra_defines=USE_L3_OUTLAWS,DISABLE_GRAND_MARSHAL
+    extra_defines=DISABLE_GRAND_MARSHAL
     first_scenario=A_Summer_of_Storms
     difficulties=EASY,NORMAL,HARD
     difficulty_descriptions={MENU_IMG_TXT2 ../data/campaigns/The_Rise_Of_Wesnoth/images/units/noble-fighter.png _"Fighter" _"(Easy)"} +

data/core/units/humans/Outlaw.cfg

@@ -11,14 +11,8 @@
     movement=7
     level=2
     alignment=chaotic
-#ifdef USE_L3_OUTLAWS
     experience=77
     advanceto=Fugitive
-#else
-    experience=100
-    advanceto=null
-    {AMLA_DEFAULT}
-#endif
     cost=28
     usage=mixed fighter
     unit_description= _ "After some years of service, former 'footpads' rise up in the ranks of their fellow outlaws. Having proven themselves in combat, they are given more dangerous tasks, and a greater share of the spoils. Though many opponents would mock their choice of weaponry, the outlaws are well aware of its deadly capacity, and also of the ready availability of ammunition. Outlaws are somewhat ill at ease fighting during the day, preferring the cover of nightfall."

data/core/units/humans/Outlaw_Bandit.cfg

@@ -11,14 +11,8 @@
     movement=5
     level=2
     alignment=chaotic
-#ifdef USE_L3_OUTLAWS    
     experience=70
     advanceto=Highwayman
-#else
-    experience=100
-    advanceto=null
-    {AMLA_DEFAULT}
-#endif
     cost=23
     usage=fighter
     unit_description= _ "Bandits are a motley collection of men, most of dubious background. They are the strong arm of any organized group of criminals, and though they may lack in finesse, or intelligence, they excel at their preferred task of pummeling victims into submission. Like any sort of outlaw, they're not comfortable fighting in broad daylight, being used to working at night."

data/core/units/humans/Woodsman_Trapper.cfg

@@ -11,14 +11,8 @@
     movement=5
     level=2
     alignment=chaotic
-#ifdef USE_L3_OUTLAWS
     experience=65
     advanceto=Huntsman, Ranger
-#else
-    experience=100
-    advanceto=null
-    {AMLA_DEFAULT}
-#endif
     undead_variation=archer
     cost=27
     usage=archer