В all.spawn
[smart_terrains]
none = yan_st_stalker1
правильно пишется
[smart_terrains]
yan_st_stalker1 = true
так как есть смартеррейн соответствующий:
; cse_abstract properties
section_name = smart_terrain
name = yan_st_stalker1

То-есть вместо всех
[smart_terrains]
none = yan_st_stalker1

нужно написать:
[smart_terrains]
yan_st_stalker1 = true

там их штук пять по моему

Но в таком случае нужно исправить и сам смарт yan_st_stalker1, потому что его вместительность 4 npc, а в all.spawn у 5-зомбей прописан этот смарт. То есть у смарта нужно строчку:
capacity = 4

исправить на:
capacity = 5

Это тоже там в all.spawn

Ну и на Янтаре есть опечатка в файле gamedata\config\scripts\amk\yantar.ltx
creature_binded_logic не соответствовал действительности - был липовый.
Вот правильный:

[yan_lager]
xyzlg = 102.96,-9.33,-242.40,93463,1473
respawn_section = dog_weak,25,zombie_normal,25,zombie_trup,25,zombie_trup2,25,zombie_blow,25
max_count = 1
min_spawn = 1
max_spawn = 1
creature_binded_logic = logic\yan_lager
idle_spawn = 86400

[yan_tunel1]
xyzlg = -48.33,-19.09,-127.89,22572,1491
respawn_section = burer_normal
max_count = 1
min_spawn = 1
max_spawn = 1
creature_binded_logic = logic\yan_tunel1
idle_spawn = 86400
conditions = {+yan_kill_brain_done} 90, 0

[yan_garazh]
xyzlg = 113.73,0.56,63.37,100678,1520
respawn_section = bloodsucker_normal,10,burer_normal,10,chimera_normal,10,gigant_normal,10,m_poltergeist_normal_tele,10,boar_strong,10,cat_normal,10,dog_strong,10,dog_normal,10,pseudodog_strong,10
max_count = 1
min_spawn = 1
max_spawn = 1
creature_binded_logic = logic\yan_garazh
idle_spawn = 86400
conditions = {+yan_kill_brain_done} 90, 0

[yan_angar]
respawn_section = bloodsucker_normal,10,burer_normal,10,chimera_normal,10,gigant_normal,10,m_poltergeist_normal_tele,10,boar_strong,10,cat_normal,10,dog_strong,10,dog_normal,10,pseudodog_strong,10
xyzlg = 30.48,0.36,-63.10,54491,1505
max_count = 1
min_spawn = 1
max_spawn = 1
creature_binded_logic = logic\yan_angar
idle_spawn = 86400
conditions = {+yan_kill_brain_done} 90, 0

[yan_center]
xyzlg = 59.55,-0.86,-9.90,70504,1508
respawn_section = bloodsucker_normal,10,burer_normal,10,chimera_normal,10,gigant_normal,10,m_poltergeist_normal_tele,10,boar_strong,10,cat_normal,10,dog_strong,10,dog_normal,10,pseudodog_strong,10
max_count = 1
min_spawn = 1
max_spawn = 1
creature_binded_logic = logic\yan_center
idle_spawn = 86400
conditions = {+yan_kill_brain_done} 90, 0

[yan_house]
xyzlg = 26.25,0.09,-8.12,51866,1507
respawn_section = bloodsucker_normal,10,burer_normal,10,chimera_normal,10,gigant_normal,10,m_poltergeist_normal_tele,10,boar_strong,10,cat_normal,10,dog_strong,10,dog_normal,10,pseudodog_strong,10
max_count = 1
min_spawn = 1
max_spawn = 1
creature_binded_logic = logic\yan_house
idle_spawn = 86400
conditions = {+yan_kill_brain_done} 90, 0

[yan_house2]
xyzlg = 91.73,0.03,-11.88,87510,1514
respawn_section = bloodsucker_normal,10,burer_normal,10,chimera_normal,10,gigant_normal,10,m_poltergeist_normal_tele,10,boar_strong,10,cat_normal,10,dog_strong,10,dog_normal,10,pseudodog_strong,10
max_count = 1
min_spawn = 1
max_spawn = 1
creature_binded_logic = logic\yan_house2
idle_spawn = 86400
conditions = {+yan_kill_brain_done} 90, 0

[yan_dvor]
xyzlg = 3.71,0.08,-37.83,41388,1444
respawn_section = bloodsucker_normal,10,burer_normal,10,chimera_normal,10,gigant_normal,10,m_poltergeist_normal_tele,10,boar_strong,10,cat_normal,10,dog_strong,10,dog_normal,10,pseudodog_strong,10
max_count = 2
min_spawn = 1
max_spawn = 2
creature_binded_logic = logic\yan_dvor
idle_spawn = 86400
conditions = {+yan_kill_brain_done} 90, 0