Battlefield 4 engineers have two dumb free fire launcher options to aim at tanks, lav, helicopters and anything else that needs to go boom. There are notable differences between the two both in flight and explosive punch.
Symthic forum thread with launcher movement speed stats
http://forum.symthic.com/battlefield-4-technical-discussion/5689-bf4-engineer-launcher-stats/
Damage and More Technical Stuff: http://forum.symthic.com/battlefield-4-technical-discussion/7431-engineer-luncher-stats-v2-naval-strike-update/
Angle of impact to damage multipliers
http://forum.symthic.com/battlefield-4-technical-discussion/6736-visualization-of-vehicle-incoming-damage-multipliers-angle/