Train Spotting Question

#1
Are the Russians still spending on tactical battlefield weapons development? Are there new vehicles, SAMs, etc. appearing or is military development not such a big thing these days?
 
#18
from what I understand , most trains use Marine diesel egnines, I remember walking inside the engine compartment of a few Trains and they are massive and very cramped inside.

no Deltec type engine, just the normal inline cylinders or V formation.