Vanguard class Titan

Doomed state. When the Titan is reduced to 0 HP it enters the doomed state and has 50 more HP before it dies.

Pilot bond. When a pilot is bonded with the he gains the following bonuses. He adds their intelligence bonus and profecincy bonus to his attack rolls, he can use certain abilities of the pilot's (up to DM's discretion) and he adds their wisdom, intelligence and charisma modifiers to his own checks and saves.

Shield. The Titan has 100 HP shield that covers his body and takes damage for him every turn he is not hit the shield regains 25 HP

Multi attack. You make 20 XO-16 attacks and can replace those attacks with punch attacks 10 XO-16 attacks to 1 punch and you can use rocket salvo and/or upgrade core if available.

Punch. Melee Weapon Attack: +10 to hit, reach 10 ft., 1 target. Hit: 35 (4d10 + 10) [bludgeoning] damage. If you melee a Titan that is in a doomed state you execute it and it does automatically.

XO-16. Ranged Weapon Attack: +0 to hit, range 40/120 ft., 1 target. Hit: 2 (1d4) [piercing] damage.

Rocket salvo. Ranged Weapon Attack: +0 to hit, range 60/180 ft., 1 target. Hit: 35 (3d10 + 10) [bludgeoning] damage (recharge 5-6).

Upgrade core. For every creature you kill you core meter is increased by an amount equal to the creatures maximum health divided by 10 rounded up (100% required to use core). Each time you use upgrade core your shield is replenished and you gain the next upgrade (max of three upgrades) all upgrades are reset at the end of the day. 

Upgrade 1 shock bullets: XO-16 does an extra 1d6 lightning damage.

Upgrade 2 rearm and reload: rearm recharge changed to 4-6.

Upgrade 3 supior chassis: the Titan's max HP is increased by 100 and he is immune to critical hits.

Rearm. Reset the cooldown of rocket salvo and fully heal warp shield (recharge 5-6).

Warp shield. When BT is attacked you can activate the warp shield which has a health of 100 and it takes damage in place of BT if the shield is hit and the attack does more damage then the shield's current HP then the attack breaks the shield and BT takes the remaining damage if the damage is less than or equal to the shield's current HP then it catches the projectile when the shield ends any projectiles it holds is sent in a 15ft cone or 60ft line and anyone in that come must make a DC 20 saving throw or take the damage taking half on a success (heals 50 HP every turn it is not used).