These seem very similar to Pathfinder's
Fast Zombies with a few minor differences. Do we want to convert them?
Sure, why not.
They look pretty straighforward. Take a standard zombie and either give it the SRD Choker's Quickness power or permanent haste instead of "single actions only". I think I prefer permanent
haste myself.
Boost its Dex and speed a bit and add
haste to the creation prereqs.
How does this look:
Zombie, Quick
Medium Undead
Hit Dice: 2d12+3 (16 hp)
Initiative: +2
Speed: 60 ft. (12 squares)
Armor Class: 16 (+2 Dex, +1 dodge, +3 natural), touch 13, flat-footed 12
Base Attack/Grapple: +1/+2
Attack: Slam +3 melee (1d8+1)
Full Attack: 2 slams +3 melee (1d8+1)
Space/Reach: 5 ft./5 ft.
Special Attacks: Haste
Special Qualities: Damage reduction 5/slashing, darkvision 60 ft., immunity to acid, undead traits
Saves: Fort +0, Ref +3, Will +3
Abilities: Str 12, Dex 15, Con —, Int —, Wis 10, Cha 1
Skills: —
Feats: Toughness (B)
Environment: Any
Organization: Solitary, gang (2-12), or mob (10-20)
Challenge Rating: 2
Treasure: None
Alignment: Always neutral evil
Advancement: 3-4 HD (Medium);
Level Adjustment: —
This animated corpse constantly twitches and jerks, as if it can barely contain its movement.
Quick zombies are specialized undead that move and attack with supernatural speed. In combat, they run as swiftly as horses and are used as shock troops. Quick zombies decay very rapidly, lasting no more than a few months before crumbling into dust.
A quick zombie can be created with the spells create undead and haste. The caster level must be at least 12th.
COMBAT
Quick zombies charge toward whatever foes their master designates, then deliver a shower of lightning-fast blows until they or their opponents are destroyed.
Haste (Su): A quick zombie is continuously accelerated as if it was under a
haste spell (caster level 12th). This effect is unaffected by
dispel magic,
break enchantment or similar spells, but it can be temporarily neutralized by an
anti-magic field or a
slow spell. A quick zombie that is unable to use its haste power has the following changes to its stats:
Speed: 30 ft. (6 squares)
Armor Class: 15 (+2 Dex, +3 natural), touch 12, flat-footed 12
Base Attack/Grapple: +1/+2
Attack: Slam +2 melee (1d8+1)
Full Attack: Slam +2 melee (1d8+1)
Saves: Fort +0, Ref +2, Will +3