Recon mission requires no points spent by challenger. 400 points for each force--maximum of 1 large model, no massive model allowed, and no restriction on the amount of small models.
The Kaigun Shosho has organized 2 recon squadrons, the first led by an Ika as part of the naval recon group:
Nautical Recon Squadron
I-13: Ika Class x1 = 100
Recon Cruiser Squadron: Nakatsu Class x2 = 120
Recon Frigate Squadron: Uwatsu Class x4 = 100
Recon Corvette Squadron: Fujin Class x4 - 80
Aerial Recon Squadron
IBSS Ryusho War Gyro Tsukuyomi Class x1 = 150
Inari Class x2 = 150
Tetsubo Class x3 = 90