These mods will bring the closest you can get as playing as Alyx Vance from Half-Life series, based on my opinion.

Scenario Details:
Alyx Vance was known to keep a clear head, ever since the events of Half-Life: Alyx. Put into this unusual place by the G-Man with only her pistol, she strives to get out of the place by collecting tapes that seem to recognize someone as a Threat...

Recommended Settings:
Modded Weapons Only
Modded Tiles Only

You could subscribe to all, or select one gun only.