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Control Expertise
Lieutenant Commander

This skill increases your command of Control Effects, including both your effectiveness when using them, and your ability to resist the same effects. Control Effects include all of the following:

  • Disable
  • Hold
  • Repel/Pull
  • Confuse
  • Placate
  • Flight Speed Debuffs
  • Turn Rate Debuffs

Each point of Control Expertise provides both of the following:

  • +0.5% Base Effectiveness for Outgoing Control
  • +1 Resistance Rating to Incoming Control

+60 Control Expertise

Total Skill Bonus = +60

Total Control Effectiveness Modifier = +30%

Total Control Resistance Rating Modifier = +60
Improved Control Expertise
Science Skill 2 R2

+40 Control Expertise

Total Skill Bonus = +100

Total Control Effectiveness Modifier = +50%

Total Control Resistance Rating Modifier = +100

Overview[ | ]

Science Skill 2 R1

Control Expertise is a Lt. Commander Science skill that is available to all players once at least 5 skill points have been spent. This skill increases the effectiveness of Control Effects (listed below) that you use while increasing the resistance to those effects. Purchasing it allows you to also purchase Improved Control Expertise and/or Control Amplification if you choose. With Improved Control Expertise, you gain a total of 50% effectiveness toward your control effects and 100 control resistance, though you may further increase your Control Expertise substantially using various items and abilities (listed further below).

How Control Expertise affects abilities depends on the type:

  • Confuse, Disable and Placate abilities will have their duration extended.
  • Hold, Pull and Repel abilities will have their magnitude enhanced.
  • Flight Speed and Turn Rate debuffs will either have a set duration and have their magnitude increased, or a set magnitude and will have their duration increased.

Note that for the purposes of Control Effects, Disable refers to the entire ship being disabled. Effects that only disable a single susbsytem—Weapons, Shields, Engines, Auxiliary, or Cloaking devices—are considered Drain Effects and have their duration affected by the Drain Expertise skill instead.

Abilities affected[ | ]

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Bridge Officer abilities[ | ]

Increased duration:
Increased magnitude:


Bridge Officer abilities with Control Effects that are *not* affected by Control Expertise include:

  • ↑ 1.0 1.1 Includes Photonic shock waves generated by the starship trait Overwhelming Force icon Overwhelming Force.
  • Console abilities[ | ]

    Increased duration:
    Increased magnitude:


    Console abilities with Control Effects that are *not* affected by Control Expertise include:

    Weaponry[ | ]

    Some Chroniton and Tricobalt projectiles may proc control effects upon detonation, the duration of which can be boosted:


    Some other weapons with Control effects do not scale with Control Expertise, including:

    Set bonus, innate and other abilities[ | ]

    Increased duration:


    Modifiers[ | ]

    Following items or abilities will increase Control Expertise skill level, which in turn affects the performance of abilities in the section above.

    Science consoles[ | ]

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    This article or section is in need of an update

    Remaining Mk XV Epic values

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    Engineering and Universal consoles[ | ]

    Other equipment[ | ]

    Various starship equipment grants Control Expertise, usually in the form of [CtrlX] modifiers, or [GG] when it's a Singularity Core. Some have integrated modifiers, meaning they grant Control Expertise despite not having visible [CtrlX] or [GG] modifiers. Maximum values shown below assume Mk XV Epic quality.

    Set bonuses[ | ]

    Duty officer system[ | ]

    Traits[ | ]

    Other[ | ]

    See also[ | ]

    Offense[ | ]

    Usage of Control abilities can proc other effects:

    • Science Skill 2 R2 Skill: Control Amplification
    • Inhibiting Secondary Deflector icon Inhibiting Secondary Deflector - Delayed Radiation Damage to target of Science Boff Control abilities
    • Reputation traits:
      • Controlled Countermeasures icon Controlled Countermeasures - +7% (9.4%) Bonus Energy Weapon and Projectile Damage against Controlled targets
      • Saru's Grace icon Saru's Grace - +1 (1.25%) Damage and Speed to self for 20 sec when activating Control Abilities. Stacks 10 times.
    • Space traits:
      • Invasive Control Programming icon Invasive Control Programming - Disables a random enemy subsystem when activating Science Control Bridge Officer Abilities.
      • Regenerative Control Synergy icon Regenerative Control Synergy - +45% Hull Regeneration for 10 sec when activating Control Bridge Officer Abilities.
      • Fulcrum Shift icon Fulcrum Shift - +25% Increased Flight Speed and Turn Rate for 6 sec when activating Science Control Bridge Officer Abilities.
      • Unconventional Systems icon Unconventional Systems - Using Control Bridge Officer Abilities reduces the cooldown of all Universal Consoles.
    • Starship traits:
      • Checkmate icon Checkmate - +30% Exotic Damage and Projectile Weapon damage for 15 sec when activating Control Bridge Officer Abilities.
      • Kick Them While They're Down icon Kick Them While They're Down - +5% to Critical Chance for 15 sec when activating foe-targeted Control Bridge Officer Abilities on an enemy that is affected by a Control effect. This effect can stack five times.
      • Nano-Infestation icon Nano-Infestation - Activating a Control bridge officers ability deals Physical DoT that spreads from the affected enemy.
      • Terran Machinations icon Terran Machinations - 10% Firing Cycle Haste for Energy Weapons for 15 sec when activating Control Bridge Officer Abilities.

    Defense[ | ]

    Being affected by a Control ability can proc effects as well:

    • Set bonuses
      • 3-piece: Ability: Predator, Prey - Remove all detrimental Control effects from self every second for a moderate duration.
    • Reputation traits:
      • Counter-Stroke icon Counter-Stroke - +35% (43.8%) Critical Severity for 5 sec when affected by a Control effect.
      • Evasive Tactics icon Evasive Tactics - Immunity to Control effects for 5 (6.3) seconds when affected by a Root, Hold, Disable or Repel effect.
    • Space traits:
      • Fresh From R&R icon Fresh From R&R - The first Control effect applied to the ship is cleansed and the ship gain 3 seconds of Control immunity thereafter.
      • Secret Command Codes icon Secret Command Codes - You gain a bonus to Control and Damage Resistance and a Heal over Time effect for ten seconds when you are the target of a Control effect.
    • Starship traits:
      • Punch It! icon Punch It! (Cleanse Control debuffs when taking damage at 50% or less hull strength)
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