Landing next to the base and not attacking it but an enemy unit.

[pookywb]

Here's my take. One of the most certain ways to win is by amassing a larger force and slowly and surely pushing towards their base. You GET that larger force by killing their units (especially their high wit cost units) and leaving your units alive.

To try to guarantee that I will win further on down the line, I will almost never attack the base until I know the game is in the bag. If I send a runner who can either attack the base or kill a sniper, I'll kill the sniper. Same goes for a medic. Et cetera.

This (along with smart playing elsewhere) allows me to build up a superior force that, with careful planning, will pretty much guarantee I win the game.