Here you will find ideas and articles for painting and modelling with Scarab Miniatures
Painting Late War Austro Hungarians
Undercoat Black and apply a base coat of Charadon Granite (Games Workshop). Then apply Field Grey (Vallejo 102/830) for the uniform. High light uniform with a mix of Field Grey and Biege Camoflage (Vallejo 103/821)
Helmets can be the same colour or a Brown shade. Grenade bags should be any suitable "sack material" colour. The Foundry Buff leather or Moss set both work quite well. Alernatively you can use Games Workshops Kommando Khaki with a Bleached Bone highlight.