2. Original Poster (in forum-style collection of comment; the first person to comment or POST)
3. Operation (usually occurring in military gaming)
4. Operation 2 (second half of co-op or cooperation)
2. "Why is everyone getting so angry, the op was obviously kidding?!"
3. "In COD4 I always play spec-ops (special operations)it's the only way to roll."
4. "I love halo because it supports co-op!"