While not an AWST myself, understanding that the Chinook was designed with a very capable self-protection suite that includes IR flares, chaff and active directed infrared counter-measures, those are self-protection systems that would not necessarily provide the same demand for large groups of AWS techs as clearly the CF-18s would require, and to a lesser degree the Auroras (and Sea Kings / Cyclones). The Chinook is still in the early stages of implementation and the self-protection systems will be implement in the years to come. As a first tour, where you will be looking to learn the craft of your trade, including as many of the aspects of armament and weapon systems as possible, you would likely not get as much out of a posting to Chinooks as you would on the line at a fighter squadron. The AVN techs, FEs and door gunners look after the C6 machine guns, so you would be dealing specifically with the chaff and flares only, no other weapon systems.
:2c:
Regards
G2G