Comment 8 for bug 732806

The event happens under the following conditions:

1) 240000 in-game seconds have elapsed AND the player has at least one
    hunter hut
2) OR the field 65, 28 is seen by the player.

I have no objections to adding the condition that a barracks needed to
have been build. The question is if we want to do this and if so, now or
after build 17?