The dueling arena is a great place to spend some time. Our squad spends some time in there each week. What really kicks is getting 8 or so of your squaddies together, and fighting another squad in an historically correct planeset, like 109g10 vs. P51d, etc. The side with the last plane in the air wins. Surprisingly, the 109 has won most of the time.
Anyways, yeah, the dueling arena can be a blast...