Started Scen 226 currently turn 8 initial setup in outlying areas good set up for a few flank shots which luckily I have mainly avoided, will do an AAR on & link here for you follow progress. Want to try using all that arty to flatten the town & see who survives as still think its a bit over the top.
I am no expert but points as I think of them that might be helpfull.
1) When attacking other than East West use the "Set Rally Point" button so route sensibly. Very important if dropping Paras behind enemy lines & can do in game to but not for the enemy.
2) This is just my view but generaly better if the enemy has the best equipment most of my tanks are safe from the front suggest at least swapping ATGMs for the best available.
3) If you have the CD worth setting opfire filter for a couple of enemy units or adjusting range down using Y key. Things like RCLs hard to spot as dug in so screw range down to 5-8 for a more accurate shot. If use Y & fired on from greater range they will return fire if they can.
My brains not worth %$£# had a couple of others but forgot

Edit
Remembered one AI does not know how to use ammo resupply never give it ammo trucks, can give bunkers but set up units to be supplied 1 hex away not ajacent, better to just adjust ammo loadout for it