Eternal Servitude: Whenever the Adeptus Astartes Redemptor Dreadnought is reduced to 0 hit points, it instead is reduced to 1 hit point. This feature can be used only once per encounter.

Heavy Flamer (recharge 6): Cone of 15-feet, 2d6 damage, DEX save (DC 13) for half damage.

Power Fist. Melee Weapon Attack: +4 to hit,  reach 5 ft. Hit: 1d6 + 3 bludgeoning damage.
Macro Plasma Incinerator. Ranged Weapon Attack: +4 to hit, range 50/100ft, Hit: 1d10 + 3 piercing damage.
Short-range rockets "Arrowhead". Ranged Weapon Attack: +4 to hit, 3 targets, range 20ft, 1d4 piercing damage each.

Anti-missile defense (once per round): Whenever hit by a non-magical ranged attack, Adeptus Astartes Redemptor Dreadnought can use its air-defense system to target the incoming missile if it is small or smaller size. When it does so it reduces the damage by 1d10 + 3 points.