TLDR: bulletins for conscripts are retained, veterancy of the reciving squad works on joining cons, bulletins of the receiving squad do not
(also the rate of earning bulletins is LUDICROUSLY low, 600 hours in the game, and nowhere near 3x of all the strong bulletins yet (i dont even have a single of the 5% CDR for basic inf for any faction yet), at this rate i will get all commanders before i will have all good bulletins, tbh if they wanted me to buy the stuff to skip the grind, they rly should let us BUY bulletins, or just upp the droprate / let you craft the ones you want by breaking down like 50 other bulletins to make 1 new one, not only is this an annoying grind, but since i will be gated by bulletins rather than commanders to make a truly optimal min-max loud-out its also a BROKEN P2W system)
option 1: bulletins that buff conscripts always work on conscripts (the model) and will transfer to a new squad (say a guard, with their different weapons) meaning i should go for con buff bulletins always
option 2: bulletins affect the squad or weapon entities, and i should go for guard buff bulletins to get a bonus in the above example
option 3: bulletins do not stick with the model when merged, BUT bulletins that affect the squad / wep entities ALSO do not affect the joining conscript models, in this case merging is worse than i think
now to my knowledge when merging only the conscript model entity is retained, and they get the wep and squad entity of the receiving squad (including any veterancy, this sugests to me option 1 or 2 is more likely, as i bet the effect is on the model, squad, or wep entity for bulletins, but i DONT KNOW WHICH ONE, so anybody who knows (and provide source; say gamefiles would be ideal) please let me know
Bonus question; i have seen a lot of conflicting stuff about what bulletins stack and what does not, (and even statements from relic that turn out to be false (panzerschreck cost reduction stacks, relic said multiple identicals do not)) so again, somone who KNOWS, please what stacks and what does not (3x accuracy duplicates? 3x CDR on shot duplicates?............)
EDIT: now after testing i have been able to confirm the 2%+ sight range bulletin is applied to the guard model, not the squad, a fully conscripted guard squad will not retain the sight, once i get one of the Oohra! bulletins i will do tests to see if conscripted guards shoot faster, but given how the above works i assume it will work the same way