The Wanderer was one of Primeworld's early successes, a
submarine explorer that could more than hold it's own in combat
against the hostile creatures of the seas of most planets. The
Homing Torpedoes are really anti-ship weapons, adapted for use
against larger forms of sea life, and the Concussion Charges
produce a blast that is capable of eliminating whole schools of
smaller sea dwellers.
The fire control listed for the homing torpedoes only applies
when used against organic creatures that produce a heat signature.
When they are used against targets that do not do so, they have
2D+1 in that statistic. The fact that they use a heat seeking
homing device renders them particularly susceptible to counter
measures such as flares, as they will invariably seek the target
with the most defined heat signature.
The concussion charge is designed to produce a huge spherical
area of superheated water, around 30 meters in diameter. Anything
caught in that area receives the listed damage, and the waves the
charge produces will disrupt ordinary swimming for an area three
times as great.
The Wanderer is very good at what it does, but it is really
not very effective at fending off military craft. Modified craft
of this type were used by the Resistance on Rihir, but they were
quickly destroyed when the Imperial Leviathans were first
introduced to that world. Currently, many of these craft are used
by fishermen, both to bring down large prey, or to blast apart
reefs and stun or kill all life within the reef. For this reason,
Wanderers have a bad reputation on inhabited worlds, and it is very
hard to get permits for their operation.