Overwatch 2

I got this on Hanamura map when i was attacking,the enemy had set up a torbjörn turret I stood behind the white van on the right side and kept giving a teammate a barrier when they walked infront of the turrets , I'd activate to give myself a barrier as i stood infront of the turrets.
Rinse and repeat for 60 seconds and there you are.

When the barrier takes damage a number will appear in your reticle keep it above 70% for 60 seconds.

Good luck.

This can be easy or hard depending on enemy team composition, your allies, how the match plays out, and how you use your barriers. To get this achievement, you need to keep Zarya's Particle Cannon power above 70% power (indicated at the middle of your screen just below your cross-hair) for 60 seconds (or 1 minute). The best way to use your barriers is during a fight, NOT before it, as they don't last very long.

Both barriers have the same duration, but have different cooldown times. The Projected Barrier (used on your teammates) has an 8 second cooldown while the Particle Barrier (used on yourself) has a 10 second cooldown. Remembering these are the key to unlocking this achievement. Here are some tips to get this achievement:

1) Always have a key member of your team near you at all times. Whatever it is a support character like Mercy, defense characters like Bastion, or an offensive character like Reaper or Solider: 76, you should be near them and be at the ready to offer support. When they come under fire, use the Projected Barrier on them to build up.

2) Use the Particle Barrier wisely as it does not cool down as fast as the Projected Barrier. While you can use it to charge quickly from certain attacks, like Winston's Tesla Cannon, the ability does not cool down quickly and can mean a big difference between life and death.

3) Be on the lookout for certain heroes, particularly Reaper and Pharah, that can do a lot of damage. While they can provide you with a huge amount of charge, they can tear your barriers down really quickly and can kill you rather quickly.

4) Always be near the enemy, but not too close to have everyone focus on you. Your barriers won't last forever and you don't have as much health as the other tanks do.

5) DON'T DIE! If you die, your power resets to 0 when you respawn and you will have to start from scratch.

For more information on Zarya and how to use her, this quick start guide by Overwatch Central on YouTube can get you started:

EDIT: The gameplay with the achievement unlocked is found at the last match of this video:

Fun Fact: The achievement name, "Power Overwhelming", is the name of a cheat code used in Starcraft, which makes your units and structures invincible.

I found one of the easiest maps to do this on was as an Attacker on Route 66 especially if the other team is using Torbjorn or Bastion. Start by giving one of your allies a shield as they come out the doorway . Then once it has dissipated apply your personal shield . You should reach 100% pretty quickly. Make sure to stay back near the spawn point and keep the same pattern. Don't bother firing your cannon unless absolutely necessary since that will drain the cannon faster. As long as you are using the train cars as cover it should be pretty quick that the achievement will activate. Feel free to duck back in the spawn to avoid being killed. Your barrier should be ready to use again before you reach 70.

Note: A Winston's Tesla shot will also charge up your cannon very quickly but can be hard to escape if no other teammates are around to assist.

Best of Luck

What do Zarya's Barriers do?

Particle Barrier is bound to Zarya's Ability 1 which is cn_LB by default.
Projected Barrier is bound to Zarya's Ability 2 which is cn_RB by default.
Particle Barrier allows Zarya to protect herself with a barrier while Projected Barrier allows Zarya to protect an ally with a barrier. Both barriers have similar properties.
These barriers have 200 health and have a shared cooldown of 10 seconds, but have 2 charges (also shared). The barriers cleanse all status effects aside from stuns and give Zarya Energy when damaged. The only difference is that the Projected Barrier cannot be applied to the same target within 2 seconds.

How does Zarya's Energy work?

As stated before, damage dealt to Zarya's barriers give her Energy. This Energy strengthens her primary and secondary fire. Each barrier can give up to 40 Energy. Zarya losses 2.2 Energy/second. Dying will reset Zarya's Energy to 0.

How do I unlock Power Overwhelming?

To unlock this achievement, you must keep your Energy above 70 for a minute. If you manage to get to 100 Energy, you only have ~13.5 seconds until it drops below 70. Here are a few ways to gain Energy.

D.Va

• Self Destruct - Deals enough damage to give you 40 Energy and is easily countered
• Re-Mech - Deals enough damage to give you 40 Energy but requires a bit more timing and has a smaller range