HR: UNSC Weapons - Grenade Launcher (M319)

Basic description: a.k.a., "pro-pipe." Single shot, single reload. Launches a grenade that does impact damage and splash damage. Grenade explosion can be delayed by holding trigger down, will not explode until trigger is released. Max 15 rounds. Can be a phase 3 loadout option in Invasion gametypes. 

[UPDATE 12/3/10] - Secondary mode with holding down the trigger generates an EMP burst, but does less splash damage.  Primary mode (fire and forget) does not have EMP mode, but does more damage.  Direct hits cause massive damage but are difficult to score on infantry.  The small display on the grenade launcher itself (not the HUD) displays distance grenade has traveled and how many entities are in the kill radius of the grenade.  This is extremely useful for judging how far you've launched it and when to release the trigger!

NEW FOR HALO REACH: Brand new in Reach.

Restrictions: Slow reload leaves player vulnerable on misses. EMP

Uses: Medium to long range. One-shot kills, EMP damage from splash damage. Can launch grenades near targets and time explosion to do remote damage. Can leave grenades in doorways as traps. Pairs very well with jet packs.

Best for: Defensive players in tight spaces or clearing out objective areas.