- Reflex Sight or
- Medium range scope (2x) - More preference towards 2x to use as a scoping device as well when checking out movement areas
- Flash Suppressor - Makes the user less visible to enemy units.
- Laser Sight (increases accuracy when firing from the hip) - Moving around a lot in order to ensure all teammates vehicles and MAXes are repaired could mean a lot of firing from the hip
- Soft Point Ammunition (more damage, short range)
- Suppressor (reduce noise, muzzle flash)
- Laser Sight (increases accuracy when firing from hip)
- Nanoweave Armor (increase health) - Good overall armor choice.
- Utility Pouch - Increases the Engineer's carrying capacity for all explosives.
- Advanced Shield Capacitor (shortened recharge delay) - Good choice as long as you ensure you are in and out of combat quickly and give the shields time to recharge
- Sticky Grenade - Great grenade for overall combat for the Engineer
- Anti-Personnel Explosives
- Tank Mines
- C-4 Explosives
These are going to be a player choice and depend on what your defending against mainly but all are great at defense when setup properly at choke points are objectives.