--

файлы gamedata\config\misc items.ltx
находим строку

[vodka]:identity_immunities
GroupControlSection = spawn_group
discovery_dependency =
$spawn         = "food and drugs\vodka"
;$prefetch     = 32
class        = II_BOTTL
cform        = skeleton
visual        = weapons\vodka\vodka
description    = enc_equipment_food_vodka1

ef_weapon_type    = 0

inv_name    = Vodka
inv_name_short    = Vodka
inv_weight    = 0.5 ;0.2

inv_grid_width    = 1
inv_grid_height    = 2
inv_grid_x    = 5
inv_grid_y    = 2
cost        = 100

attach_angle_offset    = 0.000000, 0.000000, 0.000000
attach_position_offset = 0.087266, -0.078540, 0.052360
attach_bone_name    = bip01_r_hand
auto_attach        = false

// should be deleted after update
bone_name        = bip01_r_hand
position_offset    = 0.0,0.0,0.0
angle_offset    = 1.570790,1.570790,3.92699

slot        = 4

; eatable item
eat_health    = 0.01
eat_satiety    = 0.01
eat_power    = 0
eat_radiation = -0.3
eat_alcohol    = 0.1
wounds_heal_perc = 0
eat_portions_num = -1

; food item
slot        = 4
animation_slot    = 4

;hud item
hud = wpn_vodka_hud

break_particles    = explosions\explosion_bottle
break_sound    = material\bottle\collide\bottle_break_1

и видим строку

eat_alcohol    = 0.1

и ставим
сколько хотите

eat_alcohol    = 0.15

очень много не ставте
все