What does the Sixth Sense multiplayer skill do

I found a tower weapon unlock list here:

Radio Towers reward you with free weapons and items and they also unlock nearby Supply Drop missions. You’re rewarded with free weapons based on the amount of Radio Towers you’ve unlocked, not by the specific Radio Tower itself. This means that if you want a specific weapon, you can just go for the quickest/easiest route to get there, without having to do a specific tower the other side of the map. The below weapons have been placed into categories along with how many Radio Towers you need to get them for free.

Handguns

• 1911

• 6P9

• .44 Magnum – Requires 11 Radio Tower unlocks.

• D50 – Requires 12 Radio Tower unlocks.

SMGs

• Skorpion – Requires 2 Radio Tower unlocks.

• A2000 – Requires 5 Radio Tower unlocks.

• MP5 – Requires 9 Radio Tower unlocks.

• BZ19 – Requires 14 Radio Tower unlocks.

• Vector .45 ACP – Requires 12 Radio Tower unlocks.

Shotguns

• M133 – Requires 5 Radio Tower unlocks.

• 1887 – Requires 4 Radio Tower unlocks.

• SPAS-12 – Requires 13 Radio Tower unlocks.

Assault Rifles

• AK47 – Requires 2 Radio Tower unlocks.

• STG-90

• F1 – Requires 8 Radio Tower unlocks.

• MS16 – Requires 10 Radio Tower unlocks.

• P416 – Requires 15 Radio Tower unlocks.

• ACE – Requires 13 Radio Tower unlocks.

• Bushman – Signature Weapon. Requires 18 Radio Tower Unlocks

Sniper Rifles

• SVD – Requires 3 Radio Tower unlocks.

• M-700 – Requires 6 Radio Tower unlocks.

• Z93 – Requires 15 Radio Tower unlocks.

LMG’s

• PKM – Requires 4 Radio Tower unlocks.

• U100 – Requires 7 Radio Tower unlocks.

• MKG – Requires 14 Radio Tower unlocks.

Launchers

• RPG-7 – Requires 6 Radio Tower unlocks.

• GL-94 – Requires 8 Radio Tower unlocks.

Specials - Repair Tool – Requires 2 Radio Tower unlocks.

• Flare Gun – Requires 7 Radio Tower unlocks.

• Recurve Bow – Requires 3 Radio Tower unlocks.

• Flamethrower – Requires 5 Radio Tower unlocks.

It can sometimes be useful to quickly pass under an obstacle which otherwise requires crouching, like a low and narrow bridge when you run in a creek bed or a tree log laying over a path.

Just remember that after the slide, your character is in the crouched state, so in order to not lose the valuable milliseconds you just gained, immediately press sprint again to get back into the sprint state.