Turnbased tween

I’m looking to build a game, which appears live action but is really turnbased.

So I was thinking say each turn is a second. So a bomber, would move 1square per second.

so each second a set interval will fire telling the bomber to tween 1 square.

yet it judders a bit at each tick. increasing the interval time helps but it still judders and thats with only 3 objects moving.

so it leaves me to think I may need to change it, ie, the game predicts where the unit’s destination will be taking into account enemy action then tweens there

is that a more sensible option or could I tweek the tween to make it appear smooth?

Thanks