How do I kill them effectively? Now first, you wanna take note of your weapon and your range. It is most efficient to use the Barrett, as it has a high range, can deal good damage and pierce through.
-However, Barretts are too heavy.
-This also takes place in an indoor environment.
An RPG could be an option for this. However, an RPG could deal damage to the house.
Flamethrowers could deal damage to the houss if you're bad at using it. However, good handling could increase the chances of you not hitting the house. This is why I will choose katanas to kill them both effectively. It will be a quick, quiet, and easy kill. Splash damage or piercing damage won't work.