The reclassified infantry must deploy 3 rank deep . From an earlier question on keil deployment I am sure it it only deployment and that the TUG may "open ranks" and deploy 4 or 5 wide later using cards

Correct ?

Still it is also clear to me that the pilum infantry shoots only one rank deep whatever the depth of the pilum infantry file

https://mortem-et-gloriam.co.uk/smf/index.php?topic=3465.msg23448#msg23448

Well long covid akin to a stroke does strange things to memory