Sorry if this is a dumb question

When the game finishes, there is a 'SAVE' button right next to 'OK' on the score page. Just click on 'SAVE' then name the file. You'll find the replay in My Documents > Crossfire > Replay for uploading to support ticket if reporting.

If you want to watch the replay, go to STORAGE, then click on 'Replay'. Then you'll see the list of replays, select one and watch

U mean record? If not u already saved.