4boys 5girls absurdres adrian_shephard alyx_vance armor artist_request barney_calhoun beard black_op blue_eyes briefcase brown_armor brown_eyes brown_hair colette_green d0g facial_hair formal g-man gas_mask gina_cross glasses goatee gordon_freeman green_eyes gun half-life half-life:_decay half-life:_opposing_force

3girls 4boys adrian_shephard alyx_vance barney_calhoun black_boots boots brown_hair chimeraenvy closed_eyes colette_green facial_hair garden_gnome gina_cross gordon_freeman gravity_gun grin half-life_(series) half-life_1 half-life_2 halo hev_suit highres multiple_boys multiple_girls short_hair smile tongue tongue_out v-shaped_eyebrows

2girls absurdres blue_eyes brown_hair colette_green dated english_commentary gina_cross green_eyes gun hair_ornament hairpin half-life:_decay half-life_(series) handgun hev_suit highres holding holding_gun holding_weapon lart173 looking_at_another multiple_girls open_mouth simple_background smile submachine_gun weapon white_background

2girls absurdres armor blue_eyes brown_hair building colette_green colt_9mm_smg door gina_cross glock green_eyes grenade_launcher gun hair_ornament hair_stick half-life:_decay half-life_(series) half-life_1 handgun hev_suit highres keypad lamda_symbol m203 monitor multiple_girls nuclearmissionjam power_armor redhead

3girls amerika_zarigani armor assault_rifle bangs black_headwear black_jacket blonde_hair blue_eyes blue_headwear bow braid bright_pupils broom broom_surfing brown_eyes colette_green colette_green_(cosplay) commentary_request constricted_pupils cookie_(touhou) cosplay crossover danidani_(cookie) fang full_body gordon_freeman gordon_freeman_(cosplay) gun hair_bow