I've never served in the military, so I'm not authority on the subject. Perhaps someone who has served in the military can provide more definitive answers.
Remember, though, that the commands in English may not necessarily be standardized between all English-speaking military forces - even the Wikipedia entry for drill commands references this.
1. - I don't know what this phrase might be.
2. - In the American military, this is referring to as 'counting off'. I believe the command is 'Count Off'.
Student or Learner