HOLMENTZER HALFLINGS
Halflings are short, 3 feet high, little folk with several special abilities. Out-of-doors they are difficult to see, having the ability to vanish into woods or undergrowth. They are like dwarves in their resistance to magic.* Halflings are extremely accurate with missiles and fire any missile at +1. They can use all the weapons and armor of a fighting man as long as it is "cut down" to their size. - Holmes, pg. 7
Further specifics from Mentzer DMR, pg. 16:
A halfling character has special skills at hiding. This is because of the halfling's small size and ability to "freeze," or hold very still, not moving, for short periods of time. A halfling is also harder to hit when attacked by any creature larger than man-sized... [gaining] a bonus to their Armor Class.
* Holmentzer uses the Saving Throw Chart from inside the back cover of Mentzer Basic DMR, a chart by way of Cook Expert.
HALFLINGS IN FURTHERMOOR
Long ago, the largest community of halflings in Furthermoor was among the hills of Hoppling Downs, in NW Furthermoor, until the Shadow War took place nearby, in the zone now known as the Enchanted Waste. Today, the largest communities are the Halfling Ghetto within Furthermoor City & the hilly region of Duck Hill. Halflings are known for their excellence in the leisure arts, namely the brewing of beer & the growing of potent leaf.