The Battle Tank stands over 12 feet tall, heavily armoured...big.  I like it!
A Star Fighter with a touch of style.  This is the N-1 star fighter.  It seems prety, but not really designed for war, although it has a hyper-drive.  The driver is aided by a standard astromech unit.
The astromech unit comes in a variety of shapes and sizes.  A common sort of these units is the R2 unit.  They come equiped with many nifty gadgets such as welders, saws and holographic projecters.  They make that lovely 'beeping' sound, but can also print in a language understandable to humans on screens.
The Battle Droid replaces the part of soldiers.  They are completely loyal and fearless.
A Cybot Galactica protocol droid.  I am not exactly certain what it does, I presume it translates language and stuff.