On the skeleton template page, it lists a "Skeleton Archer" Template. This is a CR+0 template.
Skeleton (Medium Archer): While not as intelligent or skilled as skeletal champions, skeletal archers are nevertheless a welcome addition to any undead army. Skeletal archers gain Point-Blank Shot and Precise Shot as bonus feats. (CR +0)
Assuming that any template could be selected from that list, should a template like this cost extra HD for the purpose of animate dead? If so, how much extra would be appropriate? Would a 2x multiplier be appropriate for this?