The Detriment is the single heaviest strider in the field. It can defend itself against air attacks or use its rockets to hit distant targets, but the real meat lies in the massive gauss guns designed for one purpose - to kill other heavy units quickly and efficiently. Remember - the wise commander sends his Detriment out with adequate escorts against light unit swarms and air assaults.
Tactics and Strategy
Think of the Detriment as a game-ender in giant robot format. There are a few tricks that can stop one in their tracks involving heavy aerial bombardment, close-range EMP units, disintegrator gun (found on Ultimatums), and the like, but with a decent escort they're nigh unstoppable and can punch right through everything your enemy has and proceed to merrily blow up their bases.
However, they're very slow and their range is limited, so they suffer from the problem of being an absolutely enormous metal investment that can only be effective at a relatively small area at a time. If your frontlines are already collapsing, a Detriment won't save you: the enemy will simply kill you everywhere where the Detriment isn't. You need to be capable of surviving long enough for the Detriment to actually reach the enemy's economy and do its thing.
