"Scale battles" refers to conflicts or competitions on a large or significant level. It implies that the battles being fought are on a grand or extensive scale, involving substantial resources, participants, or impacts. Full definition
This seems to be large scale battles with both AI and human competitors. (player2.net.au)
The small scale battles lend themselves to be played in short bursts. (gamedesignjunkie.com)
In this game variant, you play out full - scale battles of attrition, gaining ground or being pushed back depending on your team measures up to those you're facing. (dailydot.com)