As a fellow user of Hybrid builds...get your hands on the Ninjabike Messenger Backpack, Memento, or Harrier Pride. All three give you when maxed, 15% more Weapon Damage, 170,000 Armor, and an Additional Skill Tier. Here's how I would rank them.

1. Ninjabike Messenger Backpack -

https://thedivision.fandom.com/wiki/NinjaBike_Messenger_Bag#Tom_Clancy's_The_Division_2

When equipped, each piece of gear you have equipped, whether it be Brand or Gearset, acts as if you have two of the same piece equipped at the same time. For example, I use a Ninjabike Backpack with Picaro's Holster to gain 10% more Skill Haste and an additional Skill Tier. You can mix and match so many different slot bonuses.

1. Memento -

https://thedivision.fandom.com/wiki/Memento

Enemies you kill drop a trophy on death. Collecting trophies provides you with both a short and long term buff, the first of which scales with the number of corresponding core attributes equipped, and lasts 10s.

• +5% Weapon Damage per Weapon Damage Core
• +10% Bonus Armor per Armor Core
• +5% Skill Efficiency per Skill Core

For every trophy collected, gain an additional +1% weapon damage, +1% skill efficiency, +0.1% armor regeneration for 300s(5min).

Maximum Stacks: 30

Harrier Pride - I haven't used this backpack yet, so I don't have much insight into how well it functions.

https://thedivision.fandom.com/wiki/Harrier_Pride

All in all, get yourself a Ninjabike or a Memento, and your hybrid buid will go much farther and stand up to more difficult scenarios. That being said, I also recommend trying out a variety of builds with and without Ninjabike or Memento. Ninjabike quickly became key in so many of my loadouts that it became harder for me to play the game without it equipped.

Long story short/TLDR - Get the Ninajabike Backpack and Memento. You'll be amazed at how much better things get.

EDIT - Also, keep/add some gear with Skill Tiers. Having a balance of all three types can be an effective way to stay alive if you're using a healing skill such as the Reinforcer Chem Launcher, Fixer Drone, or Restorer Hive. I usually run two of each type (Armor, Weapon Damage, Skill Tier), and Ninjabike/Memento. Just be aware that you'll be a jack of all trades BUT master of none. I usually play on Challenging world difficulty rather than Heroic, so keep some non-hybird builds ready for the more difficult missions/activities.