Right, we diced for sides and Robbie got be the combined Catholic League/Imperial army leaving John and I to split the Swedes between us. The Swedes' objective was to capture and hold all the river crossings in order to get their baggage across and so continue their march deep into Catholic territory devastating it on their way.
The armies were as follows:
Catholic League/Imperial: CinC Tilly Command 9
Two battalia of cavalry, each of 2 cuirassier and 3 harquebusier squadrons
Three battalia of foot, each of 2 pike blocks and 4 musket blocks.
Two companies of commanded musketeers, one each attached to two of the infantry battalia
Four squadrons of Croat light cavalry
One battery of 2 heavy guns
One battery of 2 medium guns
One light gun.
All the commanders were rated 8. One of the infantry battalia was classed as elite veteran Bavarians, one as veteran troops and the other as run-of-the-mill mercenary troops.
The Swedes were led by Gustavus himself who is rated as a 10. All the other Swedish commanders were rated as 8.
Left flank cavalry: 4 squadrons of Swedish horse and 1 unit of commanded musketeers
Right flank cavalry: 2 squadrons of Finnish horse and 2 squadrons of Swedish horse with 1 large unit of commanded musketeers
Yellow brigade: 1 pike block, 3 musket blocks and 1 battalion gun (all stubborn and elite)
Blue brigade: 2 pike blocks, 6 musket blocks and 2 battalion guns (all elite)
Green brigade: 2 pike blocks, 6 musket blocks and 2 battalion guns
Reserve cavalry: 2 squadrons of cuirassiers
Artillery: 2 medium guns
Changes and additions to the rules include a 'Swedish Salvee' rule where Swedish musketeers can fire before charging, a 'Swedish feathers' rule (although I am unsure if they worked and/or were used in Germany) and some changes to the morale saving rolls needed for the better class of infantry, e.g. previously musketeers saved on a 5+ but this has been improved for many to a 4+. The rules also include additional factors to take into account of fighting with the advantage of higher ground which was an omission in Black Powder and the original Pike and Shot rules.
On to battle. The Swedes moved first. John's horse on the extreme left managed three moves and swept round the wood and into a unit of Rob's cuirassiers. The infantry of the Yellow and Blue brigades moved forward but the Green brigade failed their command throw. The Finnish and Swedish horse on the right edged forward towards the river while the guns deployed on the hill. My dragoons made it over the river but were charged by Robbie's Croats and forced back.