I wrote that no mission counts kills. Too strong. What holds is narrower: no
mission reads the two GLOBAL counters (33/34, verified 0 sites). The game does
track kills and missions test them through attribution:
built-in 105 killed_by_player(unit) -- reads [squadron+600], which the
unit-death handler sets from the damage message's _BY_PLAYER flag -- 117 sites
across 14 stages (S02: 38, S01: 32), the 17th-most-used built-in in Stage 02.
built-in 72 -- numerator is a per-(killer, victim) squadron KILL COUNTER,
incremented in the unit-death handler; 13 sites, S01 only.
So 'did the player get that kill' is a common predicate; the game just never asks
'how many kills in total'. Evidence for 105 is the game's own strings: the death
handler branches into KILLED_BY_PLAYER vs KILLED, beside LOST_TURRET_BY_PLAYER,
SHIELD_DOWNED_BY_PLAYER and the rest.
Also withdraws the 'current / initial members' gloss on built-in 72: it is
100 x (units of B killed by A) / (declared members of B), attributed kills rather
than survivors, and reads 0 unless the script registered the (A,B) pair.
Built-in 55 resolved and shown to be effectively dead (0 sites corpus-wide);
built-in 75 confirmed as five HUD text lines via a [phase+376] dictionary.
f12f215351