What do Arnor soldiers look like?

That's a tough one. I haven't seen those models (sadly I couldn't play even the first game, damn computer , but now I'm beginning to wonder. I think that Arnor would have distinct but overall similar look of armor and weapons to that of south kingdom, they would definitely use different emblem (while southern kingdom uses white tree with seven stars above it, northern realm used one five-pointed star which would symbolize jewel and crown of northern kingdom, Elendilmir Star of Elendil, or Star of the North, representing Gil-estel Star of Earendil, also same motive is seen as a badge of Dunedain rangers, Star of the Dunedain a brooch like a silver star upon their cloaks on left shoulder) the soldiers of Arnor most likely resembled Guards of the Citadel guarding fountain and White Tree of the courtyard but without sign of tree on their black surcoats of course (as a little curiosity you might want to know that Elendil used as his bagde and seal device letters of tengwar L.ND.L read lambe amdo lambe which is his name without vowel marks) high, winged helmets, predominant colors black and silver, maybe some of the more archaic looks due to the old traditions. Arnor seems less active than Gondor which had expansionistic politics and became a real military power, large and wealthy realm