Welcome to Librarium Online!
I know this is probably a really dumb question, but can the Justicar take Terminator armor? It's in the wargear section, and isn't a weapon, so I don't see any reason why he wouldn't be able to. Also, would he gain the +1 attack from it? according to the description, Grey Knights get +1 attack with it, and since the Justicar is, well, a Grey Knight, it would make sense to me. Please tell me if I'm completely wrong here.
only inquisitors/lords can pick up terminator armor
You missread te Wargear section. There is a note next to the Termi Armour entry that says it's for INQ and INQ lords.
Justicars should be feilded naked, maby add a targeter.
1500pts GK - WIP
2000pts Skaven 0/4/0 I'll get there enventually
2000pts Khorn 20/4/2 - Retired
"I have a new ship, i'ts called the Lollipop." "I have no Information on that ship" "It's new, just been commissioned, It's a good ship!"
Don't feel bad, you really need to scour the Inquisition armouries, so that you don't miss any info for the choices.
Common new mistake. Don't sweat it.