Hi there! I enjoyed this class a lot in base Xcom, so I modified it to work correctly with Long War 2! I corrected the pistol skills to use LW2 pistols, gave it a combat knife, and gave it a tree of generally defensive perks for the middle tree. It should be sufficiently different than the LW2 Ranger class. Hope this helps those of you that want to keep using this class!

If you paste the below code in the file XComClassData.ini in steamapps\workshop\content\268500\632648555\Config, it'll update the class to my LW2 version.

[XComGame.X2SoldierClass_DefaultClasses]
+SoldierClasses="Infantry"


;************************************************************************************************************
;*** Infantry Class Data ***
;************************************************************************************************************

[Infantry X2SoldierClassTemplate]
+bMultiplayerOnly=0
+ClassPoints=4
+IconImage="img:///UILibrary_InfantryClass.class_infantry"
+NumInForcedDeck=1
+NumInDeck=2
+KillAssistsPerKill=4
+SquaddieLoadout="SquaddieInfantry"
+AllowedWeapons=(SlotType=eInvSlot_PrimaryWeapon, WeaponType="shotgun")
+AllowedWeapons=(SlotType=eInvSlot_PrimaryWeapon, WeaponType="rifle")
+AllowedWeapons=(SlotType=eInvSlot_SecondaryWeapon, WeaponType="combatknife")
+AllowedWeapons=(SlotType=eInvSlot_HeavyWeapon, WeaponType="heavy")
+AllowedArmors="soldier"
+bAllowAWCAbilities=1

; squaddie
+SoldierRanks=( aAbilityTree=( (AbilityName="LightEmUp" ), \\
(AbilityName="KnifeFighter", ApplyToWeaponSlot=eInvSlot_SecondaryWeapon), \\
(AbilityName="Quickdraw", ApplyToWeaponSlot=eInvSlot_Utility, UtilityCat="pistol") \\
), \\
aStatProgression=( (StatType=eStat_Offense,StatAmount=3), (StatType=eStat_HP,StatAmount=1), (StatType=eStat_Strength,StatAmount=0), (StatType=eStat_CombatSims,StatAmount=1)) )
; corporal
+SoldierRanks=( aAbilityTree=( (AbilityName="Opportunist", ApplyToWeaponSlot=eInvSlot_Unknown), \\
(AbilityName="Combatives", ApplyToWeaponSlot=eInvSlot_SecondaryWeapon), \\
(AbilityName="Harrier", ApplyToWeaponSlot=eInvSlot_Unknown) ), \\
aStatProgression=( (StatType=eStat_Offense,StatAmount=2), (StatType=eStat_HP,StatAmount=1), (StatType=eStat_Strength,StatAmount=0), (StatType=eStat_Hacking,StatAmount=0), (StatType=eStat_CombatSims,StatAmount=0)) )
; sergeant
+SoldierRanks=( aAbilityTree=( (AbilityName="Suppression_LW", ApplyToWeaponSlot=eInvSlot_PrimaryWeapon), \\
(AbilityName="Fortify" ), \\
(AbilityName="Flare", ApplyToWeaponSlot=eInvSlot_Unknown) ), \\
aStatProgression=( (StatType=eStat_Offense,StatAmount=3), (StatType=eStat_HP,StatAmount=1), (StatType=eStat_Strength,StatAmount=0), (StatType=eStat_Hacking,StatAmount=0), (StatType=eStat_CombatSims,StatAmount=0)) )
; lieutenant
+SoldierRanks=( aAbilityTree=( (AbilityName="ZoneOfControl", ApplyToWeaponSlot=eInvSlot_Utility, UtilityCat="pistol"), \\
(AbilityName="Formidable", ApplyToWeaponSlot=eInvSlot_Unknown), \\
(AbilityName="StaggeringShot", ApplyToWeaponSlot=eInvSlot_PrimaryWeapon) ), \\
aStatProgression=( (StatType=eStat_Offense,StatAmount=2), (StatType=eStat_HP,StatAmount=1), (StatType=eStat_Strength,StatAmount=1), (StatType=eStat_Hacking,StatAmount=0), (StatType=eStat_CombatSims,StatAmount=0)) )
; captain
+SoldierRanks=( aAbilityTree=( (AbilityName="ShakeItOff", ApplyToWeaponSlot=eInvSlot_Unknown), \\
(AbilityName="HardTarget", ApplyToWeaponSlot=eInvSlot_Unknown), \\
(AbilityName="StickAndMove", ApplyToWeaponSlot=eInvSlot_PrimaryWeapon) ), \\
aStatProgression=( (StatType=eStat_Offense,StatAmount=3), (StatType=eStat_HP,StatAmount=0), (StatType=eStat_Strength,StatAmount=0), (StatType=eStat_Hacking,StatAmount=5), (StatType=eStat_CombatSims,StatAmount=0)) )
; major
+SoldierRanks=( aAbilityTree=( (AbilityName="EstablishedDefensesOverwatch"), \\
(AbilityName="TacticalSense" ), \\
(AbilityName="EscapeAndEvadeActive") ), \\
aStatProgression=( (StatType=eStat_Offense,StatAmount=2), (StatType=eStat_HP,StatAmount=1), (StatType=eStat_Strength,StatAmount=0), (StatType=eStat_Hacking,StatAmount=0), (StatType=eStat_CombatSims,StatAmount=0)) )
; colonel
+SoldierRanks=( aAbilityTree=( (AbilityName="RapidFire", ApplyToWeaponSlot=eInvSlot_PrimaryWeapon), \\
(AbilityName="DeepReserves", ApplyToWeaponSlot=eInvSlot_Unknown), \\
(AbilityName="HitAndRun", ApplyToWeaponSlot=eInvSlot_PrimaryWeapon), \\
aStatProgression=( (StatType=eStat_Offense,StatAmount=1), (StatType=eStat_HP,StatAmount=1), (StatType=eStat_Strength,StatAmount=1), (StatType=eStat_Hacking,StatAmount=0), (StatType=eStat_CombatSims,StatAmount=0)) )

; brigadier
+SoldierRanks=( aAbilityTree=( (AbilityName="FireForEffect", ApplyToWeaponSlot=eInvSlot_PrimaryWeapon), \\
(AbilityName="RunAndGun_LW"), \\
(AbilityName="ExplosiveAction", ApplyToWeaponSlot=eInvSlot_Unknown) \\
), \\
aStatProgression=((StatType=eStat_Offense,StatAmount=1), (StatType=eStat_HP,StatAmount=0), (StatType=eStat_Strength,StatAmount=1), (StatType=eStat_Hacking,StatAmount=0), (StatType=eStat_CombatSims,StatAmount=0)) \\
)