Corrupt Town Guard

Brave. The guard has advantage on saving throws against being frightened. charmed.

Adrenaline. After falling below 25 health, the guard gets a surge of adrenaline allowing it to double its move speed until healed above 25hp or until death. The guard can use the disengage action as a reaction after being knocked below 25hp the first time. 

Multiattack. The guard makes three melee attacks or two ranged attacks.

Longsword. Melee Attack: +7 to hit, reach 5 ft, one target. Hit: 11 (2d6 + 4) slashing damage, or 13 (2d8 + 4) slashing damage if used with two hands to make a melee attack.

Shield Bash. Melee Weapon Attack: +7 to hit, reach 5 ft., one creature. Hit: 9 (2d4 + 4) bludgeoning damage. If the target is a Medium or smaller creature, it must succeed on a DC 15 Strength saving throw or be knocked prone.

Parry and disarm. The guard adds 3 to its AC against one melee attack that would hit it. To do so, the gladiator must see the attacker and be wielding a melee weapon. On successful parry, roll a d20, on any roll 15 or above the soldier can disarm the target, throwing their weapon up to 10ft away.