Don't employ modern mining techniques, just use a Pelian Chopper for some easy gold.

Also related: Don't employ gold cheats. Just mine.

Don't try to pit every overpowered mod against each other.

Creeper vines vs. Tiberium vs. Autonomous combat droid vs. RETARDs = laaaaaaaaaaaaaaaaaaaaaaaaaaaaag.

do not load a rocklet with full crabs
and kill everything

Do not attempt to teabag a unarmed enemy. Your bottom half will explode. Don't ask how I know that.

do not reload in a cramped space while playing as a ronin... or else you'll spontaneously explode.

Never, NEVER, allow a zombie to rape you in Control Chip Hunt. If you try to move, you will start burrowing at warp speed through the ground, and off the map...

Don't let the AI handle your major investments (heavy weaponry, special actors).
Ever.

Don't forget to reload whenever there's a lull, even if you're only one round down.

It is strictly unwise to use a neutron doomsday bomb, under any circumstances. You will, somehow, no matter how hard you try, kill yourself.

never, EVER let the AI use a actor with Red Loki's Firework Launcher. you will end up short a unit or two.

Never let your units handle ANY type of explosive. Any. Never.

Never make a crab bomb with an Intel Pentium processor or any shitty graphics card.

Actually, graphics cards don't really matter in CC, mainly processor.

NEVER! Fly off the map with the Actor carrying the Smegging Control Chip! Trust me! It dosen't Fail. I just let's you play on... fly your brain home and it fails.

I learned this on my first week of playing, the hard way. Never, for any reason, change the mass of a weapon's ammunition to something outrageous. When fired, the actor will lose both arms, and possibly their body. The weapon will most likely go hyper speed into some form of obstruction, and break into tiny bits.