Up to speed

[PoorOldSpike]

'Contact' means tanks will stop if they or nearby pals get shot at, which means a single little shot ringing out (say from a harmless AT-rifle) can make a whole panzer division jam its brakes on and waste time trying to spot it and return fire.
In fact I can't remember the last time I used Contact for tanks... I don't think I ever have..
'Hunt' means tanks will only stop and return fire if they see a tank or AT-gun (or PIAT/ Baz/ Schreck) shooting at them. So Hunt is the only way to go if you want to keep rolling forward without stopping for every little thing.(Note - don't be surprised if a tank on Hunt keeps rolling and firing at a piat/baz/shk, it simply means he hasn't positively I.D'd it as one yet and still thinks it's just ordinary inf)