My first take on your question is like ya said...the specials didn't really show up till later, after the majority of humans were killed or turned to regular zombies. There aren't many humans around to become affected by the specials, therefor there aren't many specials.
Regarding Boulder, well with that i guess whatever happens happens but yeah, if a Little One gets in there then i suppose were going to end up with a lot more zombie 2 point 0's (or is it now ver. 3.0?).
Bookmarks