I feel bad saying this but your firebat, medic, and infested models do not match your marine.
Y know different models, different armor and stuffs, we don't really care about 100% fidel models, i am personally happy about these models, especially the Infested Terran, there are soo many ways you can be infested, Rule 34 docet
SC2 LotV has tons of new models today. We can now replace all custom models for the Protoss using the new ones but we must decide first before doing this since we have a new Dragoon model from the LoTV campaign along with the Corsair, Reaver and Arbiter.
We use the Dark Archon made by GhostNova, is very similar to the LotV, but don't have the horns and have a hood-like thing in the armor, that model with horns is the Tal'Darim's Archon to say the truth...
For the Corsair I talked with Defiler today and we decided to leave it with the official texture (even because the original texture have some part silver)