Very important aircraft, and for the vast airspace of Russia, AWACS are very important.
Ground based radar is more widely deployed than in NATO... AWACS are used more as gap fillers or as support for groups of interceptors or attackers.
Sorry GarryB, missed your post.
Yes definitely. I wish our government went that way...sadly our Froogfoots are left to rust...
The details of the Su-25SM upgrade are not widely known but avionics upgrades to improve stand off target detection and engagement, better self defence aides,and new weapons to engage targets from further away are likely the most useful upgrades.
A proper one would be perhaps with another aircraft.
Most aircraft become rapidly old and outdated... the original F-16 was supposed to be armed with two wing tip mounted sidewinder AAMs and it was supposed to remain a light day dogfighter... if it stayed that it would be old and outdated.
Fortunately most aircraft get regular upgrades and improvements to raise performance and address shortcomings found.
For instance while the Mig-29 in its original model was a relatively simple short range point interceptor the new Mig-29M2 is a fully multirole ground attack fighter bomber able to perform a range of missions largely independent of ground control... unlike the original that was heavily dependent on ground control vans.
In a modern environment the Su-25, hell even the SM, are absolutely outdated, even if they can still be very useful.
In a WWIII vs NATO conflict.. yes. Against Afghanistan 2015 taking down poppy fields with incendiary bombs like the ZAB series, then they would not need much different equipment than that fitted during the 1980s.
Actually since the Mi-24 cargo room was most of the time and is still used most of the time just for additional ammunition for the helicopter, i thaught why not installing a mechanism for rearming the weapons.
Empty weapons on pylons are forced inside the cargo room via a track and inside new B-8B20 NUR pods are reloaded and forced into their normal position via the same track.
After analysing experience it was found that for small troop insertions it was OK but for normal landings and recoveries the Mi-8/17 got the men in and out faster... which was much safer.
Experience showed the enemy tended to keep their heads down and hide when a Hind approached and then pop up and fire at the rear of the departing aircraft.
This led to suggestions for a tail mounted remotely operated 50 cal gatling with ammo in the troop compartment optimised for laying down suppressive fire as the Hind flew away.
The competition for the Su-25 also actually had a tail gunner and a rear facing twin barrel cannon mount.
Personally I would go for inner wing pylon mounted gatlings in 23mm calibre with belt feeds leading into the rear cabin allowing ammo loads of possibly 3-4 thousand rounds to be carried and ready to fire.
There are several models of gunpod the Soviets used that were pylon mounted but had some ability to rotate and aim the guns in flight... that would be my choice for using cabin space.