Skullz

Wanna have more fun playing the campaign? Activate some skulls. They not only boost your score multiplier (gold skulls only) but they make the game more of a challenge. Here's a short description of all the skulls. If I miss one, tell me please. DX

Iron- Die and you have to start the mission all over again. On Co-op, last checkpoint for one death.
Fog- Motion Sensor be gawne.
Famine- Halves the ammo you pick up.
Mythic- All Covenant have double the health.
Tilt- Severly reduces your damage for bullets on armour and plasma on shields.
Thunderstorm- All Covenant are 1 class higher than normal. I.e. Standard Grunt turns into Armoured Grunt. Minor Elite into Major Elite, etc.
Black Eye- Melee any enemy to recharge shields
Tough Luck- Enemies always jump to evade needlers, grenades, explosives, etc. They'll never flee, either.
Catch- Enemies throw grendaes twice as much and twice as fast.

Silver Skulls:

Blind- HUD disappears
Grunt Birthday Party- Headshot a Grunt and they explode with confetti and a reassuring 'hooray!'.
Cowbell- All explosives send people flying at triple the acceleration speed.
IWHBYD- Switches chances of hearing Common dialogue and Rare Dialogue, making Rare more common.

I sometimes use the skulls, but never that cursed one that makes you start the level over.

I'll be trying an impossible run soon.

All Skulls on Legendary from start to finish.
This'll be fun~

every one of the gold skulls will give me a big problem...and Blind.

I never really play anything with Skulls

I normally use Famine, Fog, Thunderstorm, and Cowbell.

Tough Luck, Catch and Cloud/Fog are my usuals.

If I feel like upping the challenge, Thunderstorm, Black Eye and Famine. Mythic if I'm feeling brave and Iron if I feel suicidal.