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Ogryn’s main role in any game is to protect the team, take the bulk of the attention from enemies, and deal with all melee/hordes upfront and personal. Ogryn comes with a vast amount of health and wields some of the biggest weapons available. The typical role of an Ogryn is to keep their team safe from all melee enemies, to take a few hits and quickly replenish your toughness through various skills and weapon perks. This build is a minor alternative to a pure support build that we have. This build has more offensive capabilities, at the cost of a bit more survivability/supporting your teams survivability.

The Power Maul is a strong weapon to use with hordes, and a good alternate power mode to deal one powerful blow of damage, and really good stagger potential.
Power Surge really makes the power ability of the maul deal even better damage, then its already massive damage. When you hit an armored target with the power attack (which, you should be doing anyways) will release an additional big shockwave around the enemy on hit. This doubles as a crowd control ability to deal damage and stagger horde enemies around the target.
Skullcrusher deals more damage to already staggered enemies, which, if you’re using the mauls power ability, or simply shoving them back every now and then, it’s an easy blessing to get activated.
Carapace and Maniacs cover a decent group of enemy types that are either armored, or the most annoying. You can also get Flak instead if you prefer to have a wider coverage of armored targets.

Foe-Rend is a very strong shotgun type weapon, but still has great range to deal with close-mid range enemies. The perks with this weapon make it excel at that close range, and to unload the clip in a continuous fashion against enemies.
Fire Frenzy is a nice simple damage boost, increases damage for killing an enemy nearby to increase the rest of your damage for a short duration. This effect stacks and as long as you’re getting a kill every now and then, you can easily keep this effect active. Blaze Away stacks onto Fire Frenzy, increasing all damage done from your range weapon during continous fire. This very quickly ramps up after spending half the mag, you benefit from that increase damage for the second half of the mag.
For the perks, Flak and Maniac are great choices, however, if you wan’t to focus more on Monstrosities, go for Unyielding instead of Flak.
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Curios are really flexible, with only a couple perks that really benefit builds. In this case, Toughness can be substituted for Health if required, but Toughness is still recommended. You might want at least 1 Curio to have 1 Wounds on it, wounds increase the amount of health bars you have. This is beneficial, especially on higher difficulties, as it allows some leeway if mistakes happen, or you get overwhelmed.
Combat Ability regen is great in order to keep your active ability up, rushing through the field and knocking down enemies. This counts as a stagger for your increased weapon damage.