Why do you have your anti-sub rocket launcher amidships facing backwards? That's not how that weapon works!
Simple. While designing the frigate I looked a lot on Swedish rebuilds from DDs to FFs. The IRL
Karlskrona used the same position. The
Mode class DE, which this(or rather, the original DE design) is partially based on, had her AURAK(anti-sub rocket launcher) placed aft of the aft superstructure, but fore of the aft 10,5cm gun mount.
And yes, there is at least one photo of IRL
Munin firing of her ASRs at what appears an angle of about 100+ degrees.
This might not be the optimal arrangement, but as Bez said, this is a cheap frigate, and it's made in numbers.
There is probably going to be a larger one with an AURAK M/50 mounted above the A mount, somewhere in the future though.