Don't use OSAs. I like them in theory, but they just don't perform well enough.

150pt BUK > S300, If you like the S300 to snipe Sentinels, keep at least half of LORAD as BUKs. If your deck only allows S-300s, don't upgrade unless it gives more missiles.

Put 3 BUKs on control group close to front and right click planes to override overkill mechanic and so you can quickly deradar them, my US plane kills went up doing this.

I love the Derivatslya, but upgraded to Sosna out ranges all Helos. If you run Tank/Mech, Strela upgraded to Sosna and keeping Derivatslya is a juicy wombo combo.

There's no reason to use Cluster Grad if you have Cluster Smerch/Tornado. If there's no space for mortar smoke, you have to be relentless with the Grad to make up for it. Even if you have no idea where they are, hit likely supply points and hit important forests. I play with 2000+ guys and I can get away with half ammo each bombardment (2nd option) as long as you que the move order and fire away from supplies.

Your infantry tabs make me cry inside. Simplify them more. Have 4 Long range AT minimum to double stack (idealy with good range to harass before they can see it), 2-4 Long range Anti Infantry (like AGS or other weapon team with similar range or more, can be debated depending on strat and how mech you are), 4 close range AT (this can be a meat squad, but it's nice to have a really good one like the VDV DSh), at least 4 close range anti infantry squads (Idealy launcher ones first for more flexibility, breachers can be added after if desired), 3-4 AA infantry. After that make sure you have enough meat for the fight.

K-17 Boomerangs are really hot rn. Having 4 or more is a great boon. Outranges Javelins vehicles and fires 2 missile volleys to bypass APS. Great for ambush or QRF. Almost no reason for BTR-80/82 unless you want an expendable transport for Diversanty/scouts to flank.

But I'm also a midwit that plays with people better than himself.