I noticed that most of oobs lack modern motorcycles. It's kind of strange, because AFAIK, bikes are still quite popular in modern armies - especially among SF & recon units.
For example, Russian army still uses them. For now, standard type is IMZ-8.1030 with sidecar - one of the best all-terrain bikes ever produced, and direct descendant of M-72, Russian copy of famous German WW2 BMW R-71.
IMZ-8.1030 can be armed with PKM mg, AGS-17, or Konkurs - M ATGM launcher with two spare missiles in sidecar. (Yeah!
)
They are used by russian airborne forces - six were used during the famous russian KFOR raid on Prisztina Airport in Kosovo.
Anyway, they are small, agile, and cheap.
I've done some experiments, and in game, ATGM bikes work really great
.
(note: As far as i know, Israel also uses mc ATGMs - Rokons armed with Spikes, but i don't know any detalis.)