You can kill profit Taker in 5min !!!
1- You have to use good weapon in order to kill the shield fast as possible the damage buff will help you a lot I recommend using (Rubico, and Redeemer) for big damage.
2- You can use (HandSpring) instead of (primed sure footed) if u don't have it
3-You can use ([Vitality]) instead of (umbral Vitality) if u don't have the forma for it but I recommend the (umbral Vitality) for more health and buff.
4-Roar is just to increase the damage you can use eclipse instead.
5-You can use (rage) instead of (Hunter Adrenaline).
6- Press 3 than 2 than 1 and if u killed the profit taker press 4 for more credits.
THE ONLY THING THAT IS MAKING YOU FINISH PROFIT TAKER IN MORE THAN 5 MIN IS BECAUSE OF YOUR WEAPONS OR YOU ARE TOO SLOW!
You can use the necramech fourth abilitie for very big damage I recommend a good build for the necramech fourth ability.