I'm thinking through a warlock/Rogue build. Not the most optimized I know but heres what I'm trying to accomplish:

As it stands - Custom lineage (A uniquely advanced warforge covert op) 2 charisma)

Starting class warlock to allow racial feat eldrict adept(mask of many faces) for RP and for primary weapon... eldricht blast.

Stats: Str 10 Dex 16 Con 14 Int 12 Wis 14 Cha 18

Invocations are all three eldricht blast upgrades

Go to level three on a rouge to get sneak attack and a subclass.

Goal- Skill monkey/party face, but with a variety of spells/effects to shoot off like tech features if b possible. Maybe I take pact of the tome? Maybe magic initiate or metamagic adept? Phantom rouge subclass?

And I'm leaning towards thief background for theives tools proficiency as well as deception proficiency.

Thoughts?