HE VS CHAOS tommorow HELP! TACTICS!

Probably the best advice I can give is the immortal words, "don't panic". If you're afraid of his knights you'll over estimate the danger they represent and could end up causing big problems for yourself. For a start, set up your bolt thrower on the other side of the table from them - if you can hit them in the flank once or twice they're nothing but victory points. If you can, use your shadow warriors to march block them as well, then even your infantry will be able to outmanouvre them.

Against such heavy armour the bolt thrower will come in very handy, I'd suggest you give your mage seer, jewel of the dusk, curse of arrow attraction and fury of khaine if you have the points. Curse of arrow attraction coupled with the bolt thrower could take down a couple of knights before your opponent realises you're planning to shoot at them (hint - put the bolt thrower on the table facing another target unit, you'd be amazed how many people fall for this). If not, it'll mow down a good few warriors. I can't really give you much more detailed advice without knowing your opponent and his list.

It sounds like it'll be a tough game, but you'll stand a chance if you can slow down his advance and get a few flank charges in. Good luck.

If you and your opponent don't mind tooling a army for the battle at hand then a 900 point chaos army is the easiest thing to beat with HE. At 900 point he won't be taking any Deamon that cause Terror. He's what my list would look like:

Characters:
Lvl 2 mage - steed - seer - channeller - silver wand - pure of heart - 192 points

Lvl 2 mage - steed - ring of fury - jewel of the dusk - 187 points

Core:
5 Silver helms - heavy armor - shield - 115 points

5 Silver helms - heavy armor - shield - 115 points

Special:
5 Dragon princes - Standard bearer - banner of sorcery - 198 points

5 Ellyrian reavers - 90 points

Total 897 points
5 DD
7+D3 power dice

Sounds like an uncoventional army but it will be great against chaos. The only thing you need to fear is flurries. Flying skirmishers. Being chaos he won't have any ranged attacks and he'll be fast. So your task is to be fasted and stay out of combat. Your elven steeds are much faster and you need to stay out of combat. Unless you can get a rear of flank with the silver helms or dragon princes. Your mages will have enough killing power to win you the game and on steeds they can outrun your opponent. You will probably want to use heavens with the seer mages and take second sign - thunderbolt (for knights) - comet (for stuff with magic resistance, since the spell targets a spot on the table and not a unit it doesn't allow him to use his magic resistance).

Unless you misscast very badly or move stupidly you should win easily.


However I have to say I don't like tooling a army to the army I'm playing. I would rather have a force that would work well against everything.