Here's the truth:
Whether or not the LAAT/i was meant for this or that, the LAAT/i was a major component of any republic armed forces. What exactly did it do? (disregarding what it was meant for):
1. Transport infantry: The sound of the "larty" coming was a sign to clone troopers everywhere of safety in retreat, of support in a battle, and confidence in victory. The LAAT/i had room for up to thirty clone troopers and 4 speeder bikes.
2. Support: The LAAT/i played a major role in combating the enemy, as it is called a
gunship. The LAAT/i cleared landing sites, and provided direct support by being a flexible solution to many problems. While not being the best at any specific job, it had a wide-ranging arsenal that could deal with most targets. This is both it's strength and weakness. (Quote from wookieepedia:
"The LAAT/i was a repulsorlift infantry transport capable of carrying up to thirty troopers. Secondary functions included reconnaissance, direct fire support, search-and-recovery, and low-altitude air-to-ground and air-to-air strikes against vehicles ranging from airspeeders to starfighters.")
3. Did not participate in space battles: (Quote from wookieepedia: "Infantry gunships were equipped with atmospheric containment shielding and could be deployed from space, although their optimal fighting range was still in the lower atmosphere, where they could reach speeds in excess of six hundred kilometers per hour.")
4. If it is in the game, it will not be uber because the LAAT/i was not heavily armored, and relatively easy to destroy. (Quote from wookieepedia: "The LAAT was highly effective but lacked large amounts of armor making it a vulnerable target.")
All of the quoted material can be found on this link:
http://starwars.wikia.com/wiki/Low_Altitude_Assault_Transport/infantryShould it be in the game? Yes. no republic force was without them, and were a huge resource. A single Venator carried forty LAAT/i gunships with it, and the Acclamator carried double that number.