Basic/Basic+

Comes with 3 nodes that will you need to replace.

Node 1: PBR Texture (RGBA)

R - Metallic Texture
G - Roughness Texture
B - AO Texture
A - Fully White

For the Basic Material's AO map, the darker spots are where environmental effects will appear.

IMPORTANT

If you are using Basic+, use a fully white image instead of AO for the best results.

Node 2: Color Texture

Node 3: Normal Texture

Textures

From left to right, this is what each node would look like:

In Blender

In Blender this is what the textures look like. Unfold using the arrow on the left and press the folder icon to select your texture.