A few basic questions.

[boeriemore]

1. I have just received the grappling hook. Does it wear out, require repars, or get lost like I read somewhere.
2. In a life threatening situation accessing the weapons equipped wheel and the equipment wheel does not stop the game but accessing the inventory does. Is it possible to equip an item or a potion and select it from the inventory so you have it ready to use as soon as you exit the inventory?
3. Is there really any benefit using booster potions. I timed night vision and it only lasts for 12 seconds.

[Thermal Lance]

1- If you use it too much it goes into cooldown. I usually wait 20s between uses to avoid it.

2- As far as I know you have to select it as you get out of inv. BUT lets say you have a pistol equipped. If you switch that pistol for something else. Then that something else will be equipped when you leave inventory.

3- When you got all the skills for boosters. (There's 2) They last longer. Usually I use speed boosters and endurance boosters as a last resort during night when evading volatiles. Speed bioosters are very handy.... but since you got the grappling hook you might want to invest in endurance boosters instead.

Nightvision booster I'd say is more for a sneaky scenario when you want to avoid using your flashlight. I rarely use them outside of that goal.

[Blade Master]

1. It doesn't need repairs, but it has cooldown. You can increase its uses before it goes on cooldown by unlocking final Survivor skill.

2. On Normal mode, gameplay stops when you open menus, you can then replace your weapons and equipments, though to equip it in game you have to do it manually, or replace the weapon/equipment you were actually holding.

3. Not very much, I find stamina booster the most useful for fighting on Nightmare mode with melee weapons.

[boeriemore]

Thanks for the replies. One point I am at odds with. A number of those running zombies jumped onto the roof I was on. As I had my bow equipped I brought up the weapons wheel menu but was killed while it was open.

Update: 1.A few more queries. I have about 20 shields in my stash bag.
Are they really worth the space they take up in my inventory?

2.What does the "player menu" contain? I press "P" to access it but nothing happens.
I recently got a new outfit and it said I can access it by pressing "F"
Nothing happens here too.

[Blade Master]

No, you don't need so many shields, put 17 in stash for space.

You can switch your outfits in stash.

[BlackWater]

About those shields, I use them ALOT, my favorite is the Tesla, use this on the chemical warfare dudes and you'll understand why, especially if there happens to be some wall spikes behind him when you use it :)