First off the typical Soviet hey diddle diddle charge down the middle approach in taking the 1st bridge can if the German players deploy correctly destroy any chance of a Soviet win. Let your bots attack the bridge while you and a few humans flank, cross the river on foot and take the German bots on up into the woods. Take one side or the other woods and the German Bot's will break and abandon the bridge so you can then stroll up to it and take it in a shorter time frame and less losses.
The Soviet tank if supported by an engineer and a SMG type, can swing the balance so far to the Soviets that you can make a short game of it. First off use the tank as a 'support' weapon, firing HE and mg's at a distance, do not 'assault' into the crowd, the tank will soon go 'boom' with that approach. Target the reinforcements up on the ridge coming down, HE all the hidey holes you know, let the infantry take care of the bridge area itself. And an engineer blowing just one hole in the traps along the river opens a 'flanking' hole, where tha tank can get to the other side quickly, make sure at least 1 smg accompanies it to provide cover from the brave AT trooper, rather than wait for a hole an across the bridge that is much harder to do.
Once accross the bridge use the tank again as support, not a lead the way weapon. Position the tank to cut off reinforcements to the objective you are taking, let the infantry move and take the objectives.
Now for the Germans, MG's and ATR's are your key weapons. On the 1st bridge place at least two MG's up near the burning tank to cover the entire long length of the bridge. Keep their engineers off the bridge.Get two AT troopers in the 'holes' close to the bridge for the tank if it gets too close. Aim for the tracks, immobilize it, and then it is stuck, and can not support or 'charge' you. If they get across the river, more MG's along the ridge, cut them down at a distance, you know they will come to the bakery 9 time out of 10 first, so you have great 'killing' zones for MG's.
Interlock their fires, fields of fire across the open areas at about a 45* not angle straight down at them. Make the bad guy cross a line of fire rather than a real narrow straight on fire cone.
Arty the bridge as many times as you can while contesting it.
For the urban fight, keep the opponant human players and his bot's chasing your bots, while you accomplish the missions with a few human players. Order the bots to do A while you work on B, and repeat. Most human players are to intent on 'bot farming' to really contest anything. Two human players can accomplish any mission if the Commander cooperates and keeps the opponant 'bot' chasing.
The key for both sides is time, if you spend too much time taking or defending one objective you will lose. As the Germans dont do the 1,2,3 approach, mix it up, same for the Soviet, a few human players in a coordinated counter attack will throw the AI into a 'do what now' mode pretty fast.
BY the way, smoke works both ways, blinds both sides. You use smoke to blind the flanks, not straight ahead as you try and move. You prevent the flanks from assisting in fire upon you, as you focus your fires and movement towards wghat you decide is needed. On the bridge, smoke to each side will blind any support fires from the flanks, as the bots blissfully charge towards the bridge and you cut them down, and the guns to your right and left are blind. When I am playing if I see smoke on the bridge, I just fire short continuous bursts into the smoke and cut down the single brave assault trooper of Commander/SL pretty regularly.