The following errata makes life even harder for conventional infantry:
Standard Force Organization Schemes Table and accompanying text (pp. 148 and 149)
When in reference to infantry formations, replace all references to an Inner Sphere/Periphery lance with company
instead. As far as standard Inner Sphere organization is concerned, an infantry platoon is already a lance.
I suppose you could, at least, cheese it by saying
every single infantry platoon is its own separate support lance, and then strap 'em all to some other lance (like a striker lance; lord knows infantry could use the speed boost). After all, it doesn't say that two support lances can't support the same lance at a time, and it doesn't say that, for every 2 units in the supported lance, only one single-unit support
lance gets the bonus... ;)