[Endoperez]

Useless infantry would be rather useless, wouldn't it? And if you wanted it to be used, you'd have to make it useful.

Fast (map move 3) infantry with Forest and Mountain Survival, wearing light armor but well trained (Att and Def somewhere 11-14), high-damage weapon AND shield... I could try out a few things with that. It breaks the HI =1, LI & HC =2, LC = 3 rule (H-high, L-low, I-infantry, C-cavalry), though...
They wouldn't even be expensive resources, as those are based purely on equipment.