Promotions, Upgrades in RFB 1.52

[jason210]

Hi...

New to RFB and SH4.

I started a career with a small SS-type boat. It's now approaching 1943 and I'm likwe on my fifth or sixth patrol and I still have had NO upgrades offered, nor any promotions.

All I get are renown points and experience for the crew members (And occasionally a medal).

I've done about 20000 tons so far so where's my reward? I would, for example, like a bigger boat, or an air radar.

Thanks