Missing c4 inhand dir sprites

Fixes https://github.com/tgstation/-tg-station/issues/4224

![ss 2014-09-26 at 11 16 58](https://cloud.githubusercontent.com/assets/7247232/4425403/81898108-45a9-11e4-82bb-98716a6a0a5e.png)
![ss 2014-09-26 at 11 17 06](https://cloud.githubusercontent.com/assets/7247232/4425404/827cc4da-45a9-11e4-8c4b-eacd96c15c73.png)

paprika's exploit-b-gone