Wow that's great, I can get the exact same thing with out spending 400 mp! The Obers DPS with only rifles in close range is only a tiny bit higher than basic riflemen, and if you get unlucky and one of your models dies you just lost a good chunk of your DPS.
The question here isn't "Are Obersoldat still good?" It's "Why would I spend 400 MP and 60 munitions for a infantry unit with no utility that does something I can already do".
And how you want to do this since Fusilier vs Rifles at close range it's almost 50/50 and Jaegers won't stand agasint them at close range unless Rifles are damaged?
They have a chance when Fighting at long range but when Rifles caught you around the corner only Obers can kill them.
Obers can melt Rifles without LMG at any range. No other infantry below 400 can do that.
Outisde of the cover for both sides, 2 Rifles vs 1 Obers will lead us to 1 model of Rifle standing and dead Obers but this involves much RNG.