HMAS TOBRUK gives the Australian Defence Force an amphibious heavy lift capability. The ship is a multi -purpose troop and roll-on/roll-off, heavy vehicle carrier built by Carrington Slipways Pty Ltd at Tomago, near Newcastle , NSW. The design includes facilities for bow and stern loading, beaching, a drive-through capacity and inter-deck transfers via ramps.
TOBRUK can transport 18 Leopard tanks, 40 Armoured Personnel Carriers or 40 Australian Light Armoured Vehicles. The Vehicle Deck has been reinforced to enable the transportation of two Landing Craft Mechanical-8 (LCM-8) on specially designed cradles. In addition, two Landing Craft Vehicular Personnel units (LCVP) are secured by davits on either side of the superstructure. The ship's roll-on/roll-off function is supplemented by 2 x 8.5 tonne capacity Favco cranes and a Velle derrick capable of lifting up to 70 tonnes. The amphibious role is enhanced by forward and aft helicopter decks, which can be operated simultaneously. Helicopters can also be refuelled on both decks.
TOBRUK can accommodate up to 300 troops for extended duration. In an overloaded state, the ship can provide accommodation for up to 520 troops for short periods of time.
http://www.navy.gov.au/ships/tobruk/default.html
It seems a bit small for the lift capability - I bet its very cramped even on extended ops. Unloading is slow - I wonder how long it takes to get all vehicles and troops ashore?