When attacking an enemy model, the chances of getting through its defences from the front are not high. Often, unless you are using a very powerful model and/or attack against a weaker target, the chances are fairly even. And even if you get through their defences, you’ll probably only deal a single damage.
The best way to increase your chances of dealing lots of damage is to get in the rear arc of the target. This is essential for victory, as models cannot use their Skill in defense if you’re attacking from the rear arc, halving (or more) their defence dice! So, what are the best ways to achieve that?
Ideally, you want to activate your model after the target has activated, and then try to activate your model again before the target activates again next turn. This gives you one activation to move and get in the target’s rear arc (this turn) and then another activation to engage the target in the rear (next turn).
If you’re a Kaiju, use your superior maneuverability. Kaijus can pivot before or after moving, but Jaegers can only pivot after moving. This means that a Jaeger’s movement is more predictable. Think of where the Jaeger is going to be in the next turn, and plan your move so that you can get behind it.
Once you are engaged in combat, remember that you can use a Tactical action to move one hex side left or right, in order to get to the target’s rear arc. Once again, if you can use the tactical action to move to the rear arc this turn, and then activate first next turn, you can deliver a rear attack before the enemy can pivot to face you… a good option when you are engaging a very tough opponent.