i dunno whats realistic to you but i recently painted this fellow and really liked him, hes a reaper mini and if you want one more fighty i think they make one or to that are more armored.
heres mine
http://www.coolminiornot.com/113627
heres 2 other reaper minis from the official sight, both are very fighter-like
http://www.reapermini.com/gallery/2900s/2942_G
http://www.reapermini.com/gallery/2700s/2714_G