The companion Simeon Bankowski can be recruited in The Viewport in New Atlantis for 15000 credits.
Simeon Bankowski
Skills
Marksmanship
Perhaps no combat scenario is more frightening, or lethal, as a single-shot weapon wielded by someone skilled in critical shot placement.
Sniper Certification
Only a trained sniper truly understands all the elements necessary to patiently and effectively neutralize a target at excessive range.
Sharpshooting
For those who specialize in precise targeting that maximizes damage, combat is often a quickly efficient affair.