Of course infantry can do great in combat! I play lizardmen and my blocks of saurus rock in CC. If you're the aggressive type, and want tons of units, go with Orcs and Goblins maybe. orcs get the job done and are insanely cheap in points. I dont know if they have anything that can scout though. Lizardmen are also something i would suggest. Saurus are very good in CC and skinks make great scouts. lizardmen have something for just about everything you need. Except or shooting, which doesnt fit your playstyle anyway.