Having searched through the XCOM 2 source for calls to the code that modifies soldier stats, I feel confident in saying these are the only methods which will increase your Hacking stat. There does not appear to be a limit on how many times a soldier can earn this bonus.Īll told, this can get you to 145 Hack, not including the objective-based bonus. If you hack these with your specialist you can therefore improve their Hack stat.

Occasionally, hacking an objective, such as during a data recovery mission, will have a permanent boost to hacking ability (+20) as a reward.

This will cause the Skulljack to give a substantial Hack bonus (+25) to the soldier carrying it, which applies to all hacks.

After creating a Skulljack in the Proving Grounds, you can undertake the Skullmining project (also in the Proving Grounds).

Once upgraded, all of your specialists will get the higher level GREMLIN, which provides a correspondingly higher Hack stat (+20 for Mk. These become available as the result of research projects. Other classes start with much less and gain 5 Hack only at certain promotions. In general, 3 contacted regions is sufficient to provide more.

Aside from getting bonus contacts, that's the limit on regions you can contact without the radio room in the avenger. A Specialist's base Hack stat starts at 50, and increases by 5 with each level, giving you 80 base Hack at the rank of Colonel. From there, you can liberate 1 or 2 regions over a couple months, allowing you to increase your contacts and expand towards the Blacksite (which will now be visible).

Xcom 2 how to increase contact limit