Command and Conquer: Tiberian Sun Cheats

This glitch will enable you to build a building anywhere
that is flat and that you can see. First, enter the options screen,
go to "Keyboard", go to "Interface", and scroll
down until you see "Scroll North, South, East, and West".
Assign keys on the number pad to those. Construct a building and
place it as you usually would, but do not release the mouse. Next,
slide it under the sidebar, making sure no part of it becomes
red during the process. With the unplaced building under the sidebar,
scroll around to a flat area where you want to locate it, and
release the mouse. Note: This requires some practice.
To easily get rid of an enemy in skirmish, build wall (one square)
and keep building one square. You will notice that you can build
them further and further away each time from your base. Do this
until they reach an enemy base then build a load of wall around
their refinery to cut off their money supply. They will not shoot
the wall as it is making no threat to them, but it will keep their
harvester locked out. In the end they will just sell their items
one by one.
Strategy: MKII Mammoth Tank: by Robert Essen

Tip:
The tried-and-true tank rush has become a bad memory
by the time of Tiberian Sun--defenses are too cheap
and fast to build. Instead, look at longer-term,
combined-arms assaults to destroy your enemy's base. Tip:
In the quest to find and restore the Hammerfist Base,
look for the base in the top left corner of the map. Tip:
For the NOD, a group of missile bikes makes for an
excellent distraction while the main forces smash
down walls and turrets elsewhere. This works especially
well against human opponents. Often a few bikes can break
through defenses and wreak havoc deep in an enemy base.

Tiberium veins will damage most vehicles, except for the following: NOD Buggy, Wolverine and Hover MLRS. This makes them excellent units for scouting vein areas. Veins also have no effect on infantry and Harvesters.